Detecting a movable object in a location includes providing a first 3D representation of at least part of a surface; providing a second 3D representation of at least part of the surface; determining for the first 3D representation a first excluded volume in space where no surface can be present; determining for the second 3D representation a second excluded volume in space where no surface can be present; if a portion of the surface in the first 3D representation is located in space in the second excluded volume, the portion of the surface in the first 3D representation is disregarded in the generation of the virtual 3D model, and/or if a portion of the surface in the second 3D representation is located in space in the first excluded volume, the portion of the surface in the second 3D representation is disregarded in the generation of the virtual 3D model.
A method and a system for segmenting a 3D digital representation of a tooth into segments is provided. The method includes obtaining the 3D digital representation of the tooth. The 3D digital representation includes a plurality of facets. The method may further comprise determining a facet normal for each facet of the plurality of facets of the 3D digital representation, assigning each facet of the plurality of facets to a particular segment of a plurality of segments based on a direction of a corresponding facet normal, and grouping one or more facets of the plurality of facets of the 3D digital representation based on the assigning.
G06V 10/764 - Arrangements for image or video recognition or understanding using pattern recognition or machine learning using classification, e.g. of video objects
The present disclosure relates to computer implemented method (1100) for generating a visualization model (110D) of an oral cavity. The method includes obtaining (1102) image data (202) associated with an image (202A) of a patient, determining (1104) oral cavity data (110A) associated with an oral cavity of the patient based on the image data (202), retrieving (1106) a three-dimensional (3D) dental model (106A) and a 3D template gingiva model (106B), and determining (1108) one or more alignment parameters (520A, 532A) for aligning at least one of a first portion of the 3D dental model, or a second portion of the 3D dental model with the dental structure of the oral cavity based on the oral cavity data. The method further includes determining (1110) one or more intensity parameters (110B) for matching a first set of colors of the 3D template gingiva model with a gingiva structure (704) based on the oral cavity data, generating (1112) a set of pixel values (110C) for a second set of colors of the 3D dental model based on the oral cavity data and one or more visualization attributes, and generating the visualization model based on the 3D dental model, the 3D template gingiva model, the one or more alignment parameters, the one or more intensity parameters and the set of pixel values.
A method includes obtaining scan data of a dental object at a local device, wherein the scan data includes primary scan data, wherein the scan data includes secondary scan data indicative of characteristics other than the 3D geometry of the dental object. The method includes establishing a connection between the local device and a remote computing device. The method includes obtaining a performance indicator by detecting a performance of the connection. The method includes, if the performance indicator exceeds a primary performance threshold, entering a full connection mode. The method includes, if the performance indicator is less than the primary performance threshold entering a partial connection mode.
A61B 1/00 - Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopesIlluminating arrangements therefor
A61B 1/24 - Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopesIlluminating arrangements therefor for the mouth, i.e. stomatoscopes, e.g. with tongue depressorsInstruments for opening or keeping open the mouth
G06T 3/40 - Scaling of whole images or parts thereof, e.g. expanding or contracting
5.
THREE-DIMENSIONAL REPRESENTATION OF A DENTAL OBJECT
A computer-implemented method is configured for applying artificial interproximal tooth data to a plurality of dental objects being scanned by an intraoral scanner. The method includes receiving intraoral scan data of a plurality of dental objects produced by the scanner; determining a 3D model of the objects based on the scan data, wherein the 3D model includes a plurality of teeth vertices; segmenting, based on a tooth segmentation algorithm, the vertices into a first and second tooth, wherein an interproximal surface of the first and second tooth does not include any of the vertices; fitting, based on a real-tooth fitting algorithm, a first and a second tooth model to the first and the second tooth, respectively, wherein the models include a plurality of reference vertices; generating artificial interproximal vertices by determining which of the reference vertices overlaps the interproximal surfaces; and applying the artificial interproximal vertices to the interproximal surface.
The present disclosure relates to a computer-implemented method and an intraoral scanning system. The computer-implemented method for removing a glare defect in a processed image scan data, including: receiving a plurality of image scan data of a dental object, processing one or more image scan data of the plurality of image scan data into a processed image scan data, wherein the processed image scan data includes a plurality of pixels, determining a plurality of defect pixels in the processed image scan data by a glare detection algorithm, and, when a geometry of an arrangement of the plurality of defect pixels fulfils one or more geometry criteria, determining, non-glare image scan data by analysing pixels of the plurality of pixels, and replacing the processed image scan data in the plurality of defect pixels with the non-glare image scan data.
The present disclosure relates generally to thermal management of a scanner, in particular a cooling system for a scanner. More specifically the present disclosure relates to a scanner wherein the cooling system is integrated, in particular a wireless intraoral scanner with integrated cooling. The present disclosure further relates to method for cooling the scanner. One embodiment relates to an intraoral scanner for scanning a dental object, comprising an outer shell housing defining a longitudinal axis of the scanner, the outer shell housing accommodating electronic components generating heat during use, and a cooling system for removing heat from the electronic components, the cooling system comprising a heat exchanger, such as a heat sink, and a fan.
A method includes receiving a first digital 3D dental model representative of a dental situation at a first time, receiving a second digital 3D dental model representative of the dental situation at a second time. Further, the method includes generating a difference map, where generating of the difference map includes obtaining values of geometric differences between the first digital 3D dental model and the second digital 3D dental model, identifying a greatest value of geometric differences from the values of geometric differences, generating a color scale including a plurality of discrete colors associated with the values of geometric differences, wherein colors of the plurality of discrete colors are separated by color scale threshold values, further wherein the color scale threshold values are generated based on the greatest value of geometric differences, and assigning the plurality of discrete colors to the values of geometric differences.
The present disclosure relates to a 3D scanner system for scanning the oral cavity of a patient. In particular, the disclosure relates to feedback mechanisms and user interfaces of intraoral scanners. In some embodiments, the 3D scanner system includes an intraoral scanner including one or more reconfigurable buttons, wherein each reconfigurable button includes a force sensor, such as a strain gauge sensor; and wherein the intraoral scanner further includes a display configured for displaying one or more icons, texts, or animations, associated with the reconfigurable buttons, wherein the display covers the force sensors, and wherein the scanner system further includes one or more processors configured to generate 3D scan data of at least a part of the dental arch.
A61B 1/24 - Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopesIlluminating arrangements therefor for the mouth, i.e. stomatoscopes, e.g. with tongue depressorsInstruments for opening or keeping open the mouth
A61B 1/00 - Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopesIlluminating arrangements therefor
10.
COMPUTER-IMPLEMENTED METHOD AND AN INTRAORAL SCANNING SYSTEM FOR REMOVING GLARE DEFECTS IN IMAGE SCAN DATA
The present disclosure relates to a computer-implemented method and an intraoral scanning system for removing a glare defect in a processed image scan data, including: receiving a plurality of image scan data of a dental object produced by an intraoral scanner, processing one or more image scan data into a processed image scan data including a plurality of pixels, and determining a plurality of defect pixels by a glare detection algorithm. The glare detection algorithm may be configured to determine when a pixel value of each defect pixel fulfils one or more pixel value criteria, and, when a geometry of an arrangement of the defect pixels fulfils one or more geometry criteria. The method further includes, determining, by a glare-removal algorithm, non-glare image scan data by analysing pixels that are in vicinity to the defect pixels, and replacing the processed image scan data with the non-glare image scan data.
A computer-implemented method, a system, and computer readable medium for generating a digital dental workflow. The method includes: receiving a first workflow action selected from a plurality of workflow actions, the first workflow action including an action input; generating an action output at least partly based on the action input of the first workflow action; suggesting at least a second workflow action and a third workflow action from the plurality of workflow actions based on the action output generated by the first workflow action, wherein at least a part of the action output of the first workflow action at least partly represents an action input for each of the at least the second workflow action and the third workflow action; and generating the digital dental workflow upon a selection of the at least the second workflow action or the third workflow action.
Disclosed is a computer-implemented method for determining and displaying distances between two three-dimensional (3D) models of dental structures, the method comprising the steps of obtaining an active three-dimensional (3D) model of a first dental structure, the active 3D model comprising a plurality of facets describing a surface of the first dental structure in 3D space, obtaining a reference three-dimensional (3D) model of a second dental structure, the second 3D model comprising a plurality of facets describing a surface of the second dental structure in 3D space, setting a first positive threshold value for a maximum relevant distance, generating a first facet search data structure for the reference 3D model using a graphics processing unit (GPU), for each vertex in the active 3D model, determining the distance to the nearest facet in the second reference 3D model up to the threshold value using at least the generated facet search data structure for the reference 3D model and displaying the determined distances in a graphical user interface on a display.
A computer-implemented method for detecting tooth cracks on a digital 3D model of a dental situation includes receiving the digital 3D model of the dental situation, generating an input for a trained neural network for tooth crack detection, wherein the input includes at least a part of the digital 3D model with associated color information. The method further includes detecting a tooth crack on the at least part of the digital 3D model by applying the trained neural network to the generated input. Further, the method includes determining a severity level of the detected tooth crack based on fluorescence information associated with the at least part of the digital 3D model and displaying the at least part of the digital 3D model, the detected tooth crack and the severity level of the detected tooth crack.
An intraoral scanning system includes an intraoral scanning device to acquire light information reflected from a three-dimensional dental object during a scanning session and one or more processors operably connected to the intraoral scanning device. The processors determine surface information from the light information, and generate a three-dimensional surface model of a dental object. At least one of the one or more processors is one or more remote computers. The one or more remote computers includes a resource pool, wherein the system provides temporary access for the intraoral scanning device to one or more resources of the resource pool based on a predefined performance mode of the scanning session. Each of the at least two predefined performance modes is configured to operate the intraoral scanning device with a different number of resources from the resource pool and/or with a different type of resources from the resource pool.
A61B 1/247 - Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopesIlluminating arrangements therefor for the mouth, i.e. stomatoscopes, e.g. with tongue depressorsInstruments for opening or keeping open the mouth with means for viewing areas outside the direct line of sight, e.g. dentists' mirrors
G06T 15/00 - 3D [Three Dimensional] image rendering
G16H 40/20 - ICT specially adapted for the management or administration of healthcare resources or facilitiesICT specially adapted for the management or operation of medical equipment or devices for the management or administration of healthcare resources or facilities, e.g. managing hospital staff or surgery rooms
Disclosed is a method for manufacturing a sheath comprising a sheath body, a heat conducting element, and an optical element, the sheath being configured for covering the tip of an intraoral scanner, the method comprising the steps of: arranging the heat conducting element over a core of the mold; inserting the core into a mold matrix to create a mold cavity defined by the core and the matrix, wherein the mold cavity has the shape of the sheath body; injecting a polymer into the mold cavity whereby the sheath body is molded over the heat conducting element; and attaching the optical element to an optical element contacting portion of the heat conducting element. Further disclosed is a sheath resulting from this method.
42 - Scientific, technological and industrial services, research and design
Goods & Services
Software as a Service (SaaS) services featuring computer-aided design (CAD) and computer-aided manufacturing (CAM) software for use in dental restorations
17.
METHOD AND SYSTEM FOR INTERACTIVELY RENDERING DIGITAL DENTAL MODELS
A computer implemented method for rendering digital three-dimensional dental models of a patient includes receiving a first digital 3D dental model; receiving a second digital 3D dental model; generating a superimposed model by superimposing one of the first digital 3D dental model or the second digital 3D dental model on another of the second digital 3D dental model or the first digital 3D dental model; and arranging, in the digital 3D space, a 2D controller and the superimposed model relative to each other such that a position of the 2D controller relative to a location of the superimposed model defines a boundary that demarcates the superimposed model between a first zone configured to render only at least a part of the first digital 3D dental model from the superimposed model and a second zone configured to render only part of the second digital 3D dental model from the superimposed model.
A 3D scanner system includes a scanning device capable of recording first and second data sets of a surface of an object when operating in a first configuration and a second configuration, respectively. A measurement unit is configured for measuring a distance from the scanning device to the surface. A control controls an operation of the scanning device based on the distance measured by the measurement unit, where the scanning device operates in the first configuration when the measured distance is within a first range of distances from the surface and the scanning device operates in the second configuration when the measured distance is within a second range of distances; and a data processor is configured to combine one or more first data sets and one or more second data sets to create a combined virtual 3D model of the object surface.
G01B 21/18 - Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring depth
G01B 11/24 - Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
G01B 11/245 - Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures using a plurality of fixed, simultaneously operating transducers
G01B 11/25 - Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures by projecting a pattern, e.g. moiré fringes, on the object
G01S 17/894 - 3D imaging with simultaneous measurement of time-of-flight at a 2D array of receiver pixels, e.g. time-of-flight cameras or flash lidar
H04N 1/00 - Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmissionDetails thereof
H04N 13/25 - Image signal generators using stereoscopic image cameras using two or more image sensors with different characteristics other than in their location or field of view, e.g. having different resolutions or colour pickup characteristicsImage signal generators using stereoscopic image cameras using image signals from one sensor to control the characteristics of another sensor
19.
METHOD AND SYSTEM FOR DETERMINING A CONFIDENCE SCORE OF A DENTAL WORKFLOW
A computer-implemented method for determining a confidence score of a digital dental workflow is disclosed. The method includes receiving scan data representative of a dental situation, wherein the scan data includes color images and near-infrared images. The method further includes determining a quality measure of the received scan data. Further, the method includes generating enhanced diagnostic images based on at least the near-infrared images of the scan data and determining a quality measure of the enhanced diagnostic images. The method further includes identifying a dental condition in the dental situation based on the enhanced diagnostic images and determining a probability value representing a likelihood that the dental condition is identified correctly. The method further includes determining the confidence score of the digital dental workflow based on the quality measure of the received scan data, the quality measure of the enhanced diagnostic images and the probability value.
A61C 13/34 - Making or working of models, e.g. preliminary castings, trial denturesDowel pins
G06T 5/40 - Image enhancement or restoration using histogram techniques
G16H 40/20 - ICT specially adapted for the management or administration of healthcare resources or facilitiesICT specially adapted for the management or operation of medical equipment or devices for the management or administration of healthcare resources or facilities, e.g. managing hospital staff or surgery rooms
20.
AN INTRAORAL SCANNING DEVICE WITH A SUPPLY ASSEMBLY UNIT
An intraoral scanning device configured to acquire intraoral scan data from a three-dimensional dental object. The intraoral scanning device includes: a projector unit configured to emit light at least onto the dental object of a patient. The projector unit includes a light source; an image sensor configured to acquire reflected light from the dental object; a processing unit configured to process the acquired reflected light into 2D intraoral scan data and/or 3D intraoral scan data, a battery unit configured to supply a DC voltage, a supply assembly unit configured to receive the DC voltage and provide a supply voltage to the light source. The supply assembly unit includes: a voltage up-converter configured to convert the DC voltage to a supply voltage, a voltage down-converter configured to convert the DC voltage to a supply voltage, and a voltage controller unit configured to control the voltage up-converter and the voltage down-converter.
H02M 3/158 - Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
H04N 9/31 - Projection devices for colour picture display
H05B 45/375 - Switched mode power supply [SMPS] using buck topology
H05B 45/38 - Switched mode power supply [SMPS] using boost topology
H05B 47/155 - Coordinated control of two or more light sources
H05B 47/16 - Controlling the light source by timing means
21.
3D DENTAL SCANNING SYSTEM AND METHOD WITH ADAPTIVE RESOLUTION
The present disclosure relates to a computer-implemented method for generating a digital 3D representation of a dental object, the method including the steps of: obtaining one or more 2D image(s) of the object; generating, based on the one or more 2D image(s), point cloud data, wherein the point cloud data includes multiple points representing surface points of the object; and generating, based on the point cloud data, mesh data including multiple polygons representing the surface of the object. The step of generating mesh data includes: obtaining geometric information based on the one or more 2D image(s), wherein the geometric information is indicative of a rate of change of one or more surface characteristic(s) in multiple surface sections of the object; determining a mesh resolution for each surface section based on the geometric information; and generating a mesh for each surface section with resolution determined for the respective surface section.
A method for digitally designing a denture for a patient, where the denture includes a plurality of denture teeth, where designing the denture includes transforming denture teeth of the denture, wherein the method includes obtaining a 3D scan of the upper jaw and lower jaw of the patient; obtaining a digital 3D arrangement of the denture teeth, where the denture teeth are pre-set in occlusion; digitally arranging the 3D scan of the upper jaw and lower jaw relative to the 3D arrangement of the denture teeth; digitally grouping the denture teeth in four groups, the four groups includes an upper anterior group, a lower anterior group, a left posterior group, and a right posterior group; and digitally arranging the upper anterior group first, the left and right posterior groups second and the lower anterior group third.
This disclosure relates to a computer-implemented method comprising the steps of obtaining a three-dimensional (3D) model of a dental site, the 3D model comprising a plurality of data points describing a surface of the dental site in 3D space; estimating a presence of one or more dental conditions defining one or more inspection sites in the 3D model, wherein each inspection site comprises one or more of the plurality of data points; determining an aggregated severity level of the one or more dental conditions for each of the one or more of the plurality of data points, thereby determining one or more aggregated severity levels for each inspection site; and determining an epicenter of the one or more aggregated severity levels of each inspection site by determining a maximum aggregated severity level of each inspection site and associating the one or more data points of the maximum aggregated severity level with a location of the epicenter.
G16H 30/40 - ICT specially adapted for the handling or processing of medical images for processing medical images, e.g. editing
G16H 50/20 - ICT specially adapted for medical diagnosis, medical simulation or medical data miningICT specially adapted for detecting, monitoring or modelling epidemics or pandemics for computer-aided diagnosis, e.g. based on medical expert systems
G16H 50/30 - ICT specially adapted for medical diagnosis, medical simulation or medical data miningICT specially adapted for detecting, monitoring or modelling epidemics or pandemics for calculating health indicesICT specially adapted for medical diagnosis, medical simulation or medical data miningICT specially adapted for detecting, monitoring or modelling epidemics or pandemics for individual health risk assessment
24.
SYSTEM AND METHOD FOR DENTAL RESTORATION USING NEURAL NETWORK
The present disclosure relates to computer-aided dental restoration system that is configured to estimate crown pose and representing virtual crown in 3D model. The system obtains 3D model of dentition of the patient. The system segments 3D model to obtain segmented tooth data and generates encoded 3D model representation suitable for processing by trained neural network. The method for generating encoded 3D model representation comprises subsampling point cloud representation based on segmented tooth data, determining surface normal representation, retrieving dental notation of restorative site, encoding each of plurality of points with corresponding surface normal representation and with value relative to restorative site to produce encoded 3D model representation, inputting encoded 3D model representation into trained neural network, and producing output, using trained neural network, wherein output includes prediction of translation of each point of encoded 3D model representation into positions corresponding to crown pose.
G06F 30/27 - Design optimisation, verification or simulation using machine learning, e.g. artificial intelligence, neural networks, support vector machines [SVM] or training a model
25.
METHOD AND SYSTEM FOR ESTIMATING AN OPTIMAL DENTAL SITE VIEW
The disclosure relates to computer-implemented method and system for generating an optimal view direction of an affected area in a 3D model of intra-oral scan data allowing a dental health care professional to inspect and convey dental assessments in an efficient, fast and optimized manner. In more detail the method and system described herein is configured to estimate the optimal view from which an affected area of a dental site may be displayed on a graphical user interface while allowing automated updates of the view direction to bring the affected site into focus of a graphical user interface.
A computer-implemented method for providing dynamic zoom assistance during scanning process of a dental object is disclosed. The method includes obtaining light information reflected from the dental object inside an oral cavity by scanning the dental object with an intraoral scanner. The method further includes generating a digital 3D model of the dental object based on the obtained light information, displaying, on a graphical user interface, the digital 3D model in a first zoom state. Further, the method includes detecting that, as a result of motion of the intraoral scanner, the generating of the digital 3D model satisfies a criterion, and transitioning from the first zoom state of the digital 3D model to a second zoom state of the digital 3D model based on the detecting step.
A dental scanning system includes an illumination unit including a light source configured to illuminate the dental object; a detector unit including a sensor configured to receive a plurality of two-dimensional images in response to the illumination of the dental object; a processor configured to generate a processed data by processing one or more of the plurality of two-dimensional images, wherein a three-dimensional digital representation of the dental object is generated based on the processed data; a wireless network unit configured to wirelessly connect the dental scanning system to a network including a plurality of network elements including at least one network element configured to receive the processed data; and a network operation module including a session module configured to establish the scanning session by operationally connecting, via the wireless network unit, the dental scanning system with one or more network elements.
G16H 10/60 - ICT specially adapted for the handling or processing of patient-related medical or healthcare data for patient-specific data, e.g. for electronic patient records
G16H 30/20 - ICT specially adapted for the handling or processing of medical images for handling medical images, e.g. DICOM, HL7 or PACS
28.
METHOD AND SYSTEM FOR EVALUATING 3D MODELS OF A DENTAL SITUATION
A computer-implemented method for evaluating digital 3D models of teeth is disclosed. The method includes receiving first and second digital 3D models and generating a superimposed digital 3D model by mutually aligning the first and second digital 3D models and displaying a part of the superimposed model including a lesion of a dental condition. The displaying includes arranging a user-adjustable controller to vertically divide the displayed part of the superimposed model into first and second regions, wherein in the first and second regions only a part of the first and second digital 3D models are rendered, respectively; identifying first and second end point points of the lesion in the first and second regions, respectively; and arranging first and second interactive windows with x coordinates less than, or equal to the x coordinates of the first and second end points, respectively.
A61C 7/00 - Orthodontics, i.e. obtaining or maintaining the desired position of teeth, e.g. by straightening, evening, regulating, separating, or by correcting malocclusions
G06T 19/20 - Editing of 3D images, e.g. changing shapes or colours, aligning objects or positioning parts
Disclosed is a computer implemented method for generating a dental appliance comprising:
obtaining a first 3D digital surface representation of one or more teeth of a patient;
creating a number of points in 3D space around the 3D digital surface representation,
calculating the shortest distance from each of the points to the 3D digital surface representation;
generating a modified 3D digital surface representation by dilating the surface of the object a defined value by using the calculated distances; and
generating a resulting 3D digital surface representation of the dental appliance by erosion of the modified 3D digital surface representation inwards.
Embodiments relate to obtaining a virtual 3D representation of a patient's dentition, segmenting the virtual 3D representation to obtain first and second segmented tooth representations of neighboring teeth in the patient's dentition. The method can involve determining an initial tooth pose for the first segmented tooth representation using a geometric parameter of the first segmented tooth representation and a geometric parameter of the second segmented tooth representation. A normalized tooth representation of the first segmented tooth representation is obtained by transforming the first segmented tooth representation using the initial tooth pose for the first segmented tooth representation. The normalized tooth representation is then input into a trained neural network to output a correct tooth pose for the first segmented tooth representation.
A61C 7/00 - Orthodontics, i.e. obtaining or maintaining the desired position of teeth, e.g. by straightening, evening, regulating, separating, or by correcting malocclusions
According to an embodiment, a method for generating a digital three-dimensional model representing development in dental condition for a tooth is disclosed. The method includes obtaining, at different timepoints, a first digital 3D model of a patient's set of teeth including first texture data and a second digital 3D model of the patient's set of teeth including second texture data. The first digital 3D model including the first texture data and second digital 3D model including the second texture data are placed in a common texture space by uniformizing texture. Lastly, the digital three-dimensional model representing development in dental condition is generated based on a comparison of the first texture data and the second texture data of corresponding regions in the first digital 3D model and the second digital 3D model placed in the common texture space.
The present disclosure relates to a computer-implemented method for identifying a jaw type in a dental scan of a jaw (110). The method comprises obtaining (1102) scan data (204A) of the dental scan from an intraoral scanner (104), analysing (1104) the scan data to identify the jaw type of at least a portion of the dental scan, and generating (1106) a first 3D digital representation of at least a part of the jaw based on the scan data and the identified jaw type associated with at least the portion of the dental scan. The scan data comprises at least one of: gyroscopic data (204B), image data, accelerometer data (204C), compass data, or orientation data. The identified jaw type is associated with one of: a first jaw, a second jaw or a bite scan.
The present disclosure relates to an intraoral scanning system that is configured to generate a 3D representation of a dental object. The system receives signal information from the plurality of sensor elements, wherein the signal information is associated with one or more events at the plurality of sensor elements. The system determines a sequence of events associated with one or more sensor elements from the plurality of sensor elements based on the received signal information, determines position information of the focus element with respect to at least the part of the dental object based on the sequence of events, and generates at least one 3D point associated with at least the part of the dental object for the 3D representation of the dental object based on the position information.
This disclosure relates to an intraoral scanning device configured to perform a scanning of a dental object inside an oral cavity, the device including: one or more electronic units; a cooling system configured to remove heat from the one or more electronic units, the cooling system including a heat exchanger unit and a flow generating unit, wherein at least a part of the flow generating unit is covered by the heat exchanger unit; an air inlet and an air outlet, wherein the air inlet and air outlet are separated by the heat exchanger unit, wherein the flow generating unit is configured to move air between the air inlet and the air outlet and through the heat exchanger unit in a direction mainly perpendicular to a longitudinal axis of the intraoral scanning device.
A handheld intraoral scanner configured to acquire intraoral scan data from a three-dimensional dental object during a scanning session including a scan module, a scan tip configured to be connected to the scan module, and a housing that includes a single piece and including a first opening and a second opening opposite to the first opening, wherein one or both of the first opening and second opening are configured to receive at least a part of the scan module.
G16H 40/63 - ICT specially adapted for the management or administration of healthcare resources or facilitiesICT specially adapted for the management or operation of medical equipment or devices for the operation of medical equipment or devices for local operation
36.
METHOD FOR DETERMINING OPTICAL PARAMETERS TO BE DISPLAYED ON A THREE-DIMENSIONAL MODEL
A method for determining a plurality of final optical parameters of a dental object in an intraoral cavity includes receiving a plurality of two-dimensional images of the dental object, reconstructing a three-dimensional model of the dental object based on the plurality of two-dimensional images, determining camera positions of the plurality of two-dimensional images relative to the three-dimensional model, and receiving a plurality of optical parameters. The method may further include determining in an iterative manner: a plurality of simulated two-dimensional images of the dental object by inputting the plurality of optical parameters and the camera positions to a differentiable renderer, and multiple loss-values based on a loss function between the plurality of simulated two-dimensional images and the received plurality of two-dimensional images by adjusting the plurality of optical parameters.
An intraoral scanner system and a method for optimizing a 3D model for motion blur and warp includes receiving a 3D model that is determined by averaging intraoral scans of a dental object, determining corresponding sample 3D scan points of the 3D model, determining, based on transformation matrices, adjusted 3D scan points for each of the identified 3D scan points, by minimizing a distance between each of the identified 3D scan points relative to each of the corresponding sample 3D scan points for each of the transformation matrices, assigning different weighting coefficients to the adjusted 3D scan points for each of the identified 3D scan points, and optimizing the 3D model of the dental object based on the adjusted 3D scan points for each of the identified 3D scan points.
Disclosed is a computer implemented method for rendering interactive digital three-dimensional dental models of a patient in a graphical user interface, wherein the graphical user interface is configured with communication tools providing effective, clear and understandable communication to the patient being examined.
The disclosure relates to an intraoral scanner battery charger that includes two or more battery slots configured to receive an intraoral scanner battery, wherein each of the two or more battery slots includes a charging interface that is configured to an intraoral scanner battery interface of an intraoral scanner. The charging interface is configured to transfer a charging current to the intraoral scanner battery. The charger further includes a processor unit configured to control the charging current based on a prioritized charging algorithm. The prioritized charging algorithm includes transferring a first charging current to a first intraoral scanner battery and a second charging current to a second intraoral scanner battery, and wherein the first charging current is higher than the second charging current during a charging period, and during a subsequent charging period, the first charging current is lower than the second charging current.
According to an embodiment, a dental system and a method of securing communication for a user application installed on an external device of the dental system. The securing communication for the user application includes obtaining challenge data in the server device; transmitting the challenge data from the server device to the user application installed on the external device; transmitting a challenge request including the challenge data from the user application to the intraoral scanning device; receiving a challenge response comprising response data from the intraoral scanning device; forwarding the response data from the user application to the server device; verifying the response data in the server device based on the challenge data; and approving the user application in the server device if verifying the response data is successful.
G16H 30/20 - ICT specially adapted for the handling or processing of medical images for handling medical images, e.g. DICOM, HL7 or PACS
G16H 10/60 - ICT specially adapted for the handling or processing of patient-related medical or healthcare data for patient-specific data, e.g. for electronic patient records
An intraoral scanning device is configured to acquire intraoral scan data from a three-dimensional dental object. The intraoral scanning device includes a processing unit configured to process intraoral scan data and provide 2D image data and/or 3D image data, a memory, and a wireless interface configured to transmit the 2D image data and/or the 3D image data, wherein the processing unit is configured to receive a mode request via the wireless interface, the mode request is one or more of a service mode request for a service mode, a customization mode request, an upgrade mode request and a debug mode request, wherein the service mode is characterized in that a firmware part of the memory is writable, authenticate the mode request; and place the intraoral scanning device into the requested mode if authentication of the mode request succeeds.
G16H 30/20 - ICT specially adapted for the handling or processing of medical images for handling medical images, e.g. DICOM, HL7 or PACS
G16H 10/65 - ICT specially adapted for the handling or processing of patient-related medical or healthcare data for patient-specific data, e.g. for electronic patient records stored on portable record carriers, e.g. on smartcards, RFID tags or CD
H04L 9/32 - Arrangements for secret or secure communicationsNetwork security protocols including means for verifying the identity or authority of a user of the system
A computer-implemented method includes receiving, in a common 3D space, a first digital 3D model representative of the dental situation at a first time, and a second digital 3D model representative of the dental situation at a second time, the second time being later than the first time. The method further includes displaying a transition of a tooth of the first digital 3D model into a corresponding tooth of the second digital 3D model, wherein the displaying includes aligning the tooth and the corresponding tooth at an intermediate position between the tooth and the corresponding tooth, generating an adapter tooth based on the shape of the tooth and the shape of the corresponding tooth, and mapping the adapter tooth to the corresponding tooth to obtain the adapter tooth at a destination position.
A61C 7/00 - Orthodontics, i.e. obtaining or maintaining the desired position of teeth, e.g. by straightening, evening, regulating, separating, or by correcting malocclusions
Disclosed is a method and system of evaluating a dental preparation surface, including obtaining a digital oral situation and/or a portion thereof including a preparation surface. evaluating an attainable thickness based on the preparation surface and surroundings and comparing the attainable thickness to minimum thickness.
The present disclosure relates to an intraoral scanner (102) that is configured to perform an intraoral scanning of a dental object. The intraoral scanner includes a housing (104) defining an interior space (106), electronic components (112A, 112B, 112C and 112D) arranged within the interior space, and a heat spreader (108) arranged within the interior space between the electronic components and the housing. The heat spreader has a first surface (108A) arranged in vicinity of the electronic components and a second surface (108B) arranged in vicinity of the housing. The second surface is separated from housing with first predefined distance defining a first airgap (110) therebetween. The heat spreader transfers heat in a first direction and isolates the transfer of the heat in a second direction. The first direction is parallel to the first surface and the second direction is perpendicular to the first surface.
A61B 1/24 - Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopesIlluminating arrangements therefor for the mouth, i.e. stomatoscopes, e.g. with tongue depressorsInstruments for opening or keeping open the mouth
This disclosure relates to a computer-implemented method of reconstructing a portion of a three-dimensional (3D) representation of at least a part of a jaw, the method comprising the steps of obtaining and storing a stream of 3D frames during a live scanning session of the jaw, wherein each 3D frame comprises data describing at least the geometry of at least a part of the jaw, processing the stream of 3D frames, storing the output of the processing, during the live scanning, reconstructing the 3D representation of at last a part of the jaw based on the processed 3D frames and based on an input signal received after the live scanning, reconstructing the portion of the 3D representation of at least a part of the jaw based on the stored stream of 3D frames and output of the processing stored during the live scanning.
An intraoral scanner includes a projector unit configured to emit light at least onto a dental object of a patient; an image sensor configured to acquire reflected light from at least the dental object; a battery for powering the intraoral scanner; a processor unit configured to process the reflected light into one or more 2D images and/or 3D images; a wireless interface configured to communicate with an external device the one or more 2D images and/or 3D images, a motion sensor configured to sense a motion of the intraoral scanner; a timer unit; and a power management unit configured to reduce the power consumption of the intraoral scanner based on a motion signal provided by the motion sensor and a timer signal provided by the timer unit.
An intraoral scanner includes a projector unit configured to emit light at least onto a dental object of a patient; an image sensor configured to acquire reflected light from at least the dental object; a battery for powering the intraoral scanner; a processor unit configured to process the reflected light into one or more 2D images and/or 3D images; a wireless interface configured to communicate with an external device the one or more 2D images and/or 3D images, a motion sensor configured to sense a motion of the intraoral scanner; a timer unit; and a power management unit configured to reduce the power consumption of the intraoral scanner based on a motion signal provided by the motion sensor and a timer signal provided by the timer unit.
Buchanan
Embodiments relate to an intraoral scanning device that may include a processing unit configured to process intraoral scan data and provide 2D image data and/or 3D image data, a wireless interface configured for transmitting the 2D image data and/or the 3D image data, and a memory. The processing unit may be configured to receive a linking request for a session via the wireless interface, obtain a session identifier, transmit, via the wireless interface, a linking response. Furthermore, the processing unit may be configured to receive, via the wireless interface, an authentication message, select an intraoral scanning device key from a plurality of intraoral scanning device keys in the memory unit based on an authentication key identifier, verify client device data based on the selected intraoral scanning device key, and terminate the session if the verification fails.
G16H 30/20 - ICT specially adapted for the handling or processing of medical images for handling medical images, e.g. DICOM, HL7 or PACS
G16H 40/67 - ICT specially adapted for the management or administration of healthcare resources or facilitiesICT specially adapted for the management or operation of medical equipment or devices for the operation of medical equipment or devices for remote operation
H04W 12/069 - Authentication using certificates or pre-shared keys
The disclosure relates to a 3D scanner system for scanning an object of an oral cavity of a patient during a scanning session. The scanner system comprises an intraoral scanner. The intraoral scanner comprises one or more cameras configured for capturing images of the object for the provision of image data. The intraoral scanner comprises an outer shell made in one piece, the outer shell having an internal surface and an external surface. The intraoral scanner comprises a user interface configured for controlling one or more processes of the scanning session, wherein the user interface comprises one or more force sensor(s) arranged at the internal surface to provide a touch sensitive zone of the external surface of the outer shell, the one or more force sensor(s) being configured for detecting two or more levels of force applied by a user touching external surface of the touch sensitive zone. The scanner system comprises one or more processors configured to generate a 3D representation of the object based on the image data.
A computer-implemented method for generating an edge curve to facilitate manufacture of at least a portion of a dental device includes identifying at least one tooth reference point for each of at least two teeth on a dental model; identifying at least one offset point corresponding to each of said at least one tooth reference points such that said at least one offset point is on a gingival surface of said dental model and located outside an interproximal area; and generating said edge curve by connecting the offset points such that the edge curve is outside the interproximal area and on the gingival surface.
G06T 11/20 - Drawing from basic elements, e.g. lines or circles
A61C 7/00 - Orthodontics, i.e. obtaining or maintaining the desired position of teeth, e.g. by straightening, evening, regulating, separating, or by correcting malocclusions
The present disclosure relates to systems and methods for generating a digital representation of a three-dimensional (3D) object. In particular, the disclosure relates to a dental scanning system for acquiring images of the object and for generating the digital representation of the object. One embodiment relates to a dental scanning system for scanning a dental object, comprising an intraoral 3D scanning device comprising at least one projector unit configured to project a light pattern along a projector optical axis, the light pattern comprising a plurality of pattern features; one or more cameras having at least partly overlapping fields of view along different camera optical axes (and along the projector optical axis), each of the cameras comprising an image sensor, wherein the system further comprises one or more processors configured to generate a digital three-dimensional representation of the dental object based on triangulation.
An aspect of the present disclosure is to provide a computer implemented method that performs volumetric operations faster and with reduced memory requirements. In an embodiment, this efficiency is achieved by representing, only partially, a digital 3D volumetric space of a digital 3D dental data with subgrids. It is an advantage to avoid computations in parts of a digital 3D volumetric space because execution times or memory requirements or both may be smaller. This may further be enhanced by the fact that the disclosure operates at subgrids level as opposed to individual cell level.
The present disclosure relates to an intraoral scanning system configured to determine a three-dimensional model of an oral cavity of a patient. The system includes a tip housing configured to be inserted at least partially into an oral cavity of a patient. The tip housing includes a scan window arranged at an aperture of the tip housing, and wherein the scan window includes an inner surface arranged within the tip housing, and an infrared light source configured to emit infrared light towards the oral cavity via the scan window. The system includes a visible light source configured to emit visible light towards the oral cavity via the scan window, an image sensor unit configured to capture reflection of the emitted visible light and/or the emitted infrared light from the dental arch, and one or more processors configured to determine the three-dimensional model based on the captured visible light and to determine infrared images based on the captured infrared light. The scan window includes a window coating on at least the inner surface, and wherein the window coating is configured to reduce reflections of the infrared light and reflections of the visible light from the inner surface.
The present disclosure relates to an intraoral scanner system that is configured to display a feedback signal on a three-dimensional (3D) model of a dental object, wherein the system includes at least one projector unit configured to emit a probe light with a plurality of configurations in the form of an illumination pattern; at least one image sensor unit accommodating an array of sensor elements configured to provide two-dimensional (2D) images with three-dimensional (3D) data based on captured reflections of the probe light from a dental object, one or more processors configured to: determine a 3D model of the dental object by stitching the 2D images, update the 3D model by stitching 2D images provided by the at least one image sensor unit onto the 3D model, determine a quality level of the data in the 3D model at a position in the 3D model, and determine a feedback signal that includes the quality level of data in the 3D model and a corresponding position of the data in the 3D model, determine a feedback trigger signal when the one or more processors is not updating the 3D model. The system further includes a displaying unit configured to display in real-time the 3D model, and the displaying unit is further configured to display when the feedback trigger signal is determined, the quality level of the data at the position on the 3D model determined by the feedback signal.
The present disclosure relates to an intraoral scanning system configured to determine 3D data of a dental object in dental object. The intraoral scanning system comprising a projector unit configured to emit a first visible light, a second visible light and infrared light during a scan sequence, wherein the emitted first visible light includes an illumination pattern, an image sensor unit configured to acquire two-dimensional visible images based on the first visible light and the second visible light and/or two-dimensional infrared images based on the infrared light from the dental object, and one or more processors configured to control the projector unit and/or the image sensor unit according to a plurality of scan sequence schedules, wherein each of the plurality of scan sequence schedules includes timing of the projector unit and/or the image sensor. The one or more processors is configured to determine a 3D model of the dental object based on the two-dimensional visible images that includes the first visible light, and wherein the one or more processors is configured to shift between each of the plurality of scan sequence schedules.
G01B 11/25 - Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures by projecting a pattern, e.g. moiré fringes, on the object
A61B 1/00 - Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopesIlluminating arrangements therefor
A61B 1/04 - Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopesIlluminating arrangements therefor combined with photographic or television appliances
A61B 5/00 - Measuring for diagnostic purposes Identification of persons
A method for identifying islands of interest on a 3D dental model includes receiving at least a first dental 3D scan data, generating the 3D dental model based on the received 3D data. Method further includes identifying a plurality of regions on the 3D dental model, each region indicating presence of at least one dental condition. A severity factor value for each region is determined. The method further includes marking, on the 3D dental model, each region of the plurality of regions with a visual indicator, wherein the visual indicator is selected based on the determined severity factor value for said region. A plurality of islands is then obtained by grouping the plurality of regions on the 3D dental model (100, 300) such that each island includes neighboring regions indicating presence of the at least one dental condition. The 3D dental model is then displayed.
G06F 3/04815 - Interaction with a metaphor-based environment or interaction object displayed as three-dimensional, e.g. changing the user viewpoint with respect to the environment or object
G06F 3/0482 - Interaction with lists of selectable items, e.g. menus
G06T 17/20 - Wire-frame description, e.g. polygonalisation or tessellation
G16H 50/50 - ICT specially adapted for medical diagnosis, medical simulation or medical data miningICT specially adapted for detecting, monitoring or modelling epidemics or pandemics for simulation or modelling of medical disorders
Disclosed is a method for establishing a wireless operational connection between an intraoral scanner and a scanning station. The method comprises detecting, by the intraoral scanner, a user interaction indicative of an intention of establishing a wireless operational connection. The method comprises based on the detection of the user interaction indicative of an intention of establishing a wireless operational connection, broadcasting, by the intraoral scanner, a connection request. The method comprises receiving, by the scanning station, the connection request. The method comprises outputting, by the scanning station, an indication that the connection request has been received to the user.
A61B 1/00 - Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopesIlluminating arrangements therefor
A61B 5/00 - Measuring for diagnostic purposes Identification of persons
The present disclosure relates to an intraoral scanning system configured to provide a first composed scan information. The system includes a handheld intraoral scanning device that includes a projector unit configured to emit light with different wavelengths during time periods onto at least a dental object, wherein the different wavelengths include a infrared wavelength and a visible wavelength, and an image sensor unit configured to capture one or more visible images that each includes visible light information and to capture internal images that each includes internal light information, and wherein the visible light information includes a plurality of color channels. The system further comprises one or more processors at least operably connected to the image sensor unit. The one or more processors is configured to receive the visible light information and the internal light information, determine internal structure information of the dental object from the internal light information, assign a weight coefficient to each of the plurality of color channels of the visible light information, determine a first composed scan information that includes a difference between the internal structure information and one or more color channels of the plurality of color channels with assigned weight coefficients, and enhance distinguishability of one or more internal structures of the dental object in the first composed scan information by adjusting one or more of the weight coefficients of the one or more color channels.
Disclosed is a method for monitoring changes in jaw motion over time. A primary relative jaw motion data set and a secondary relative jaw motion data set are obtained using an intraoral scanner. The method further comprises a computer implemented method, where the computer implemented method comprises the steps of, receiving the primary relative jaw motion data set and the secondary relative jaw motion data set; obtaining a model class representing desired and/or regularising properties of articulation; obtaining a primary model parameters by fitting the primary relative jaw motion data set to the model class; obtaining a secondary model parameters by fitting the secondary relative jaw motion data set to the model class; determining monitoring information based on comparing the primary model parameters with the secondary model parameters, and displaying the monitoring information.
A61B 6/51 - Apparatus or devices for radiation diagnosisApparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body partsApparatus or devices for radiation diagnosisApparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific clinical applications for dentistry
A method for generating a digital 3D representation of at least a part of an intraoral cavity, the method including recording a plurality of views containing surface data representing at least the geometry of surface points of the part of the intraoral cavity using an intraoral scanner; determining a weight for each surface point at least partly based on scores that are measures of belief of that surface point representing a particular type of surface; executing a stitching algorithm that performs weighted stitching of the surface points in said plurality of views to generate the digital 3D representation based on the determined weights; wherein the scores for the surface points are found by at least one score-finding algorithm that takes as input at least the geometry part of the surface data for that surface point and surface data for points in a neighbourhood of that surface point.
A scanner includes a camera, a light source for generating a probe light incorporating a spatial pattern, an optical system for transmitting the probe light towards the object and for transmitting at least a part of the light returned from the object to the camera, a focus element within the optical system for varying a position of a focus plane of the spatial pattern on the object, unit for obtaining at least one image from said array of sensor elements, unit for evaluating a correlation measure at each focus plane position between at least one image pixel and a weight function, a processor for determining the in-focus position(s) of each of a plurality of image pixels for a range of focus plane positions, or each of a plurality of groups of image pixels for a range of focus plane positions, and transforming in-focus data into 3D real world coordinates.
A61B 5/00 - Measuring for diagnostic purposes Identification of persons
A61B 5/107 - Measuring physical dimensions, e.g. size of the entire body or parts thereof
G01B 11/25 - Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures by projecting a pattern, e.g. moiré fringes, on the object
63.
METHOD FOR GRAPHICALLY PRESENTING A PLURALITY OF SCANS
Disclosed is a system and method for presenting a graphical representation of an oral situation of a patient over time. In particular the system and method relates to a method of presenting a plurality of scans taken over time in manner where the focus on the changes in the oral situation of the patient is maintained.
Disclosed is a method of storing information in a mesh, including tessellating a plurality of input patches of the mesh, serializing vertices of the tessellated input patches, calculating a value for each vertex, serializing the values according to the serialization of the vertices; and storing the serialized values.
The presented method relates to a lesion detection method utilizing intra-oral scan data of 3D geometries of a mouth. The method presented is configured to detect lesions, such as caries lesions in a discretized 3D geometry generated from the intra-oral scan data, using a trained learning model. Furthermore, the method(s) presented is configured to perform post- processing of output from the learning model to generate accurate and precise lesions detections and to display the detected lesions in the input discretized 3D geometry.
A computer-implemented method for generating a 2D or 3D object, including training an autoencoder on a first set of training data to identify a first set of latent variables and generate a first set of output data; training an hourglass predictor on a second set of training data, where the hourglass predictor encoder converts a set of related but different training input data to a second set of latent variables, which decode into a second set of output data of the same type as the first set of output data; and using the hourglass predictor to predict a 2D or 3D object of the same type as the first set of output data based on a 2D or 3D object of the same type as the second set of input data.
G06T 17/20 - Wire-frame description, e.g. polygonalisation or tessellation
A61C 7/00 - Orthodontics, i.e. obtaining or maintaining the desired position of teeth, e.g. by straightening, evening, regulating, separating, or by correcting malocclusions
A scanner includes a camera, a light source for generating a probe light incorporating a spatial pattern, an optical system for transmitting the probe light towards the object and for transmitting at least a part of the light returned from the object to the camera, a focus element within the optical system for varying a position of a focus plane of the spatial pattern on the object, unit for obtaining at least one image from said array of sensor elements, unit for evaluating a correlation measure at each focus plane position between at least one image pixel and a weight function, a processor for determining the in-focus position(s) of each of a plurality of image pixels for a range of focus plane positions, or each of a plurality of groups of image pixels for a range of focus plane positions, and transforming in-focus data into 3D real world coordinates.
A61B 5/00 - Measuring for diagnostic purposes Identification of persons
A61B 5/107 - Measuring physical dimensions, e.g. size of the entire body or parts thereof
G01B 11/25 - Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures by projecting a pattern, e.g. moiré fringes, on the object
68.
INTRAORAL SCANNING DEVICE WITH EXTENDED FIELD OF VIEW
The present disclosure relates to an intraoral scanning device for scanning a dental object, the scanning device including an elongated probe defining a longitudinal axis of the scanning device; one or more scan units, each scan unit including: at least one projector unit configured to project a light pattern onto a surface of the dental object, wherein the projector unit defines a projector optical axis; and at least one camera including an image sensor for acquiring images, wherein the at least one camera defines a camera optical axis, wherein at least one of the scan units further includes a reflecting element, wherein each scan unit defines a field of view. In particular, the present disclosure relates to an intraoral scanning device having an extended field of view.
A61B 1/00 - Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopesIlluminating arrangements therefor
A61B 1/24 - Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopesIlluminating arrangements therefor for the mouth, i.e. stomatoscopes, e.g. with tongue depressorsInstruments for opening or keeping open the mouth
69.
IMPROVED GRAPH NEURAL NETWORK MODEL FOR DENTAL THREE-DIMENSIONAL MODELS
A computer-implemented method for training a graph neural network (GNN) model (106) is provided. The method includes generating a graph (404, 406) corresponding to a three- dimensional (3D) mesh (302) based on a facet mapping technique wherein the 3D mesh (302) is associated with a surface information of at least a portion of a dental arch. Further, ground truth data indicating features of the 3D mesh (302) to be predicted by the GNN model (106) is obtained. The graph (404, 406) of the 3D mesh (302) and the ground truth data are provided, as an input, to the GNN model (106) wherein the GNN model (106) comprises a set of convolution layers. Furthermore, a set of weights is applied to each convolution layer of the set of convolution layers, wherein the set of weights corresponds to differences between features of nodes of the graph (404, 406). The method further comprises receiving, as an output of the GNN model (106) with the applied set of weights, output data indicating predicted features of the 3D mesh (302). The method additionally comprises iteratively updating trainable parameters of the GNN model (106) based on comparing the output data to the ground truth data until a predefined loss function threshold is reached.
The present disclosure relates to systems and methods for generating a digital representation of a three-dimensional (3D) object. In particular, the disclosure relates to a dental scanning system for acquiring images of the object and for generating the digital representation of the object. One embodiment relates to a dental scanning system for scanning a dental object, comprising an intraoral 3D scanning device comprising at least one projector unit configured to project a light pattern along a projector optical axis, the light pattern comprising a plurality of pattern features; one or more cameras having at least partly overlapping fields of view along different camera optical axes (and along the projector optical axis), each of the cameras comprising an image sensor, wherein the system further comprises one or more processors configured to generate a digital three-dimensional representation of the dental object based on triangulation.
An intraoral scanner includes a housing having a tip end and a distal end, and at least one scan unit arranged inside the housing and disposed proximate to the tip end. The at least one scan unit includes a projector unit configured to emit light onto a dental object. An image unit is configured to acquire reflected light of the dental object. Three-dimensional (3D) data of the dental object is determined based on the reflected light. The scanner also includes a heat sink arranged proximate to the distal end, and at least one heat guide extends in a longitudinal direction and has a first end connected to the at least one scan unit and a second end connected to the heat sink. The at least one heat guide facilitates a transfer of the heat from the at least one scan unit to the heat sink.
A61B 1/00 - Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopesIlluminating arrangements therefor
A61B 1/12 - Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopesIlluminating arrangements therefor with cooling or rinsing arrangements
A61B 5/00 - Measuring for diagnostic purposes Identification of persons
72.
METHOD AND SYSTEM FOR MEASURING PERIODONTAL POCKET DEPTH
A system for measuring a depth of a periodontal pocket defined by a gap between a tooth and gingiva includes a frame, one camera, and a processor. The frame is configured to be worn by a user. The camera is configured to capture at least one 2D image of an intraoral target area. The at least one 2D image includes a representation of at least a part of the tooth, a gingiva margin defined by a section of the gingiva adjacent to the at least a part of the tooth, and a probe tip when the probe tip is inserted into the periodontal pocket. The processor is configured to receive the captured at least one 2D image and to determine an insertion length of the probe tip in the periodontal pocket. The determined insertion length represents the depth of the periodontal pocket.
A61C 19/04 - Measuring instruments specially adapted for dentistry
A61B 1/24 - Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopesIlluminating arrangements therefor for the mouth, i.e. stomatoscopes, e.g. with tongue depressorsInstruments for opening or keeping open the mouth
G06T 7/55 - Depth or shape recovery from multiple images
H04N 13/207 - Image signal generators using stereoscopic image cameras using a single 2D image sensor
A method for manufacturing/producing a dental restoration for a patient, where the method includes: obtaining a 3D scan of at least a restoration site of the patient's mouth, where the manufactured dental restoration is adapted for fitting to the restoration site; obtaining a computer-aided design (CAD design) of the dental restoration; milling the restoration from a material, where the restoration is milled both on an inside surface configured for fitting to the shape of the restoration site of the patient's mouth and on an outside surface, where the milling is according to the obtained CAD design; transferring the milled restoration to a retention means providing a fixed known position of the restoration relative to a post-processing machinery, where the restoration is retained on the inside surface, such that the outside surface of the restoration is approachable/free/accessible; and performing post-processing of the outside surface of the restoration.
Disclosed herein is method for designing a dental prosthesis and a positioning guide for placing the dental prosthesis on implants in the jaw while maintain proper occlusion. In particular the method relates to a method for designing the dental prosthesis and the positioning guide prior to implant placement. Accordingly, the disclosure relates to a method and a kit of components suited for one-day implant surgery thereby reducing the time the patient spend in the dentist chair.
According to an embodiment, a computer implemented method and a scanner system are disclosed. The computer implemented method for updating a current digital 3D scan representing the surface of a physical object with an at least one new 3D scan, where the updating of the current digital 3D scan provides an updated digital 3D scan representation of the surface of the physical object is disclosed. The computer implemented method may comprise obtaining the current digital 3D scan, obtaining the at least one new digital 3D scan, determining an inconsistent digital 3D scan, where at least a part of the new digital 3D scan does not overlap with at least a part of the current digital 3D scan, and creating the updated digital 3D scan, which represent the physical object by applying the inconsistent digital 3D scan to the current digital 3D scan.
The present disclosure relates to an intraoral scanning system that is configured to determine three-dimensional surface model and a plurality of focused images. The intraoral scanning system comprising a projector unit configured to emit light onto a dental object, wherein the emitted light includes an infrared wavelength and structured light that includes a first visible wavelength; a first image sensor unit including; a first image sensor configured to acquire first reflected light from the dental object, wherein the first reflected light includes the infrared wavelength, and wherein the first image sensor includes an array of pixels, a micro-lens array arranged in front of the array of pixels and configured to convey the first reflected light to the array of pixels, wherein one or more micro lenses of the micro-lens array directs the first reflected light to one or more pixels of the array of pixels; a second image sensor unit including; a second image sensor configured to acquire second reflected light from the dental object, wherein the second reflected light includes the structured light, a processor unit configured to determine; three-dimensional (3D) data of the dental object based on the second reflected light, a three-dimensional (3D) surface model of the dental object by merging the 3D data, and a plurality of focused images at different focus depth into the dental object by selection of a set of pixels from the array of pixels associated with each microlens of the micro-lens array, and wherein the processor unit is configured to align a position of each of the plurality of focused images to a position in the 3D surface model based on the 3D data.
G01B 11/25 - Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures by projecting a pattern, e.g. moiré fringes, on the object
A61B 1/06 - Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopesIlluminating arrangements therefor with illuminating arrangements
A61B 5/00 - Measuring for diagnostic purposes Identification of persons
77.
AN INTRAORAL SCANNING SYSTEM WITH AN INFRARED LIGHT SOURCE IN A TIP HOUSING
The present disclosure relates to an intraoral scanning system that comprises a tip housing configured to be inserted at least partially into an oral cavity of a patient. The tip housing includes a scanning window, an infrared light source configured to emit infrared light towards the oral cavity via the scanning window, a first interface unit configured to receive electrical power from a power source of the intraoral scanning system. The first interface unit is configured to be connected to a first heating conduction path, and wherein the first interface unit is configured to control a level of electrical heat power in the first heating conduction path, and wherein the first heating conduction path is configured to transfer a generated heat to the scanning window based on the electrical heat power, and a secondary conduction path, and wherein the first interface unit is configured to supply power to the infrared light source via the secondary conduction path, wherein the first heating conduction path and the secondary conduction path are at least partially in parallel within the tip housing.
A61B 1/247 - Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopesIlluminating arrangements therefor for the mouth, i.e. stomatoscopes, e.g. with tongue depressorsInstruments for opening or keeping open the mouth with means for viewing areas outside the direct line of sight, e.g. dentists' mirrors
A61B 1/00 - Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopesIlluminating arrangements therefor
A61B 1/253 - Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopesIlluminating arrangements therefor for the mouth, i.e. stomatoscopes, e.g. with tongue depressorsInstruments for opening or keeping open the mouth with means for viewing areas outside the direct line of sight, e.g. dentists' mirrors with means for preventing fogging
A61B 5/00 - Measuring for diagnostic purposes Identification of persons
A61B 1/24 - Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopesIlluminating arrangements therefor for the mouth, i.e. stomatoscopes, e.g. with tongue depressorsInstruments for opening or keeping open the mouth
Diagnostic and dental apparatus and instruments; optical and
x-ray scanners for diagnostic, dental, odontologic,
orthodontic purposes and for dentistry; scanners for
intra-oral optical dental purposes; dental optical coherence
tomography (OCT) scanners; intraoral scanners for use in the
detection and visual monitoring of surface caries, tooth
wear, gingival recession, plaque, and proximal caries.
A method includes obtaining a first and a second tooth digital representation of a tooth; subdividing each of the representations into two sub-regions; applying an alignment process for aligning a sub-region of the first digital representation with a sub-region of the second digital representation, wherein the sub-region of the first digital representation and the corresponding sub-region of the second digital representation correspond to a part of the tooth; and aligning the first representation to the second representation. A system for acquisition and processing of a tooth digital representation includes one input peripheral configured to generate image data of a jaw or a tooth; one output peripheral configured to display one digital representation of jaw or teeth and to provide visual data of the quality of the digital representation alignment; and one processing unit configured to generate digital representations of jaws or teeth and perform alignment of teeth.
According to an embodiment, a dental scanning system and a computer implemented method of generating a training set for a machine learning model are disclosed. According to a further embodiment, a dental scanning system and a computer implemented method for providing a diagnostic data set of a patient are disclosed.
A61B 1/00 - Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopesIlluminating arrangements therefor
A61B 1/24 - Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopesIlluminating arrangements therefor for the mouth, i.e. stomatoscopes, e.g. with tongue depressorsInstruments for opening or keeping open the mouth
G06V 10/26 - Segmentation of patterns in the image fieldCutting or merging of image elements to establish the pattern region, e.g. clustering-based techniquesDetection of occlusion
G06V 10/774 - Generating sets of training patternsBootstrap methods, e.g. bagging or boosting
According to an embodiment, a method for generating a digital data set for fabricating a physical dental bleaching tray useable to deliver an bleaching agent is disclosed. The method includes obtaining a three-dimensional digital representation of a patient's dentition including teeth and gingiva; segmenting two or more teeth into individual tooth; identifying a facial surface of at least one of the segmented tooth; defining a facial surface portion including a surface area that is at least partly bound by a virtual boundary that is non-interfacing with the gingiva; generating a modified three-dimensional digital representation using the defined facial surface portion; and generating, based on the modified three-dimensional digital representation, the digital data set configured to be used in fabricating the physical dental bleaching tray.
(1) Diagnostic and dental apparatus and instruments; optical and x-ray scanners for diagnostic, dental, odontologic, orthodontic purposes and for dentistry; scanners for intra-oral optical dental purposes; dental optical coherence tomography (OCT) scanners; intraoral scanners for use in the detection and visual monitoring of surface caries, tooth wear, gingival recession, plaque, and proximal caries.
medical devices, namely, optical and x-ray scanners for diagnostic, dental, odontologic, orthodontic purposes and for dentistry; scanners for intra-oral optical dental purposes; medical devices, namely, dental optical coherence tomography (OCT) scanners; medical devices, namely, intraoral scanners for use in the detection and visual monitoring of surface caries, tooth wear, gingival recession, plaque, and proximal caries; none of the foregoing for use in treating or diagnosing oral cancer
84.
Detection of a movable object when 3D scanning a rigid object
Detecting a movable object in a location includes providing a first 3D representation of at least part of a surface; providing a second 3D representation of at least part of the surface; determining for the first 3D representation a first excluded volume in space where no surface can be present; determining for the second 3D representation a second excluded volume in space where no surface can be present; if a portion of the surface in the first 3D representation is located in space in the second excluded volume, the portion of the surface in the first 3D representation is disregarded in the generation of the virtual 3D model, and/or if a portion of the surface in the second 3D representation is located in space in the first excluded volume, the portion of the surface in the second 3D representation is disregarded in the generation of the virtual 3D model.
A computer-implemented method for aligning digital three- dimensional models of a patient's dentition is disclosed. The method comprises receiving a first digital three-dimensional model (101) of the patient's dentition comprising a first plurality of tooth regions and receiving a second digital three- dimensional model (102) of the patient's dentition comprising a second plurality of tooth regions. The method further comprises obtaining closest tooth regions by identifying, for each tooth region of the first plurality of tooth regions, a closest tooth region of the second plurality of tooth regions. Further, the method comprises identifying corresponding tooth regions (200) of the first digital three-dimensional model (101) and the second digital three-dimensional model (102) by identifying, from the closest tooth regions, those closest tooth regions with a relative deviation in a surface feature lower than a threshold for the surface feature, wherein the surface feature is a surface normal and wherein the threshold is a threshold for surface normal selected in a range of 5 degrees to 30 degrees. Additionally, the method comprises aligning the first digital three-dimensional model (101) and the second digital three- dimensional model (102) by minimizing distances between the identified corresponding tooth regions (200), and displaying the aligned first digital three-dimensional model (101) and the second digital three-dimensional model (102).
A method of designing a virtual 3D model of a dental restoration for a target site of a patient's set of teeth, the method including: obtaining a digital 3D representation of the set of teeth, the digital 3D representation including a section corresponding to the target site; determining an insertion path for the dental restoration to the target site; and designing the virtual 3D model of the dental restoration based on the digital 3D representation of the set of teeth, where the designing includes generating an outer surface of the virtual 3D model, where the determined insertion path and the outer surface of the designed virtual 3D model provide that a dental restoration manufactured from the designed virtual 3D model can be moved along the insertion path to the target site.
An intraoral scanning system with wavelength dependent aperture is provided. The intraoral scanning system comprises a lens assembly including a wavelength dependent aperture. The wavelength dependent layer is characterized by a first aperture layer and a second aperture layer. The first aperture layer allows light signals of at least one of: a first wavelength, a second wavelength, or a combination thereof to pass through. The second aperture layer allows light signals of the second wavelength to pass through and blocks light signals of the first wavelength. The intraoral scanning system comprising an image sensor unit for acquiring light signals corresponding to the first wavelength and the second wavelength, and a processor configured to determine 3D data for a dental object based on the acquired light signals of second wavelength and diagnostic data of the dental object based on the acquired light signals of the first wavelength.
A computer-implemented method for aligning a two-dimensional (2D) dental X-ray image (202) with a three-dimensional (3D) dental surface scan (201) is disclosed. The method comprises receiving the two-dimensional dental X-ray image (202) of at least a portion of at least one tooth (200) of a patient, receiving the three-dimensional dental surface scan (201) of the at least portion of the at least one tooth (200) of the patient. Further, the method comprises identifying a location of the two- dimensional dental X-ray image (202) with respect to the three- dimensional dental surface scan (201) by obtaining a simulated X-ray image of the at least portion of the at least one tooth (200) based on the three-dimensional dental surface scan (201) such that an observed intensity in the simulated X-ray image matches the observed intensity in the two-dimensional dental X- ray image (202). Additionally, the method comprises displaying the two-dimensional dental X-ray image (202) and the three- dimensional dental surface scan (201) in a common three- dimensional scene, wherein the two-dimensional dental X-ray image (202) is displayed at the identified location.
A computer-implemented method for improving the accuracy of a three-dimensional (3D) representation of a jaw, the method including obtaining a first digital 3D representation of at least a part of a first jaw; obtaining a second digital 3D representation of at least a part of a second jaw; combining several 3D frames generated for a number of different views of the jaws in occlusion, wherein each 3D frame includes data expressing the geometry of at least a part of the jaws in occlusion; and correcting the first digital 3D representation by adjusting the position of one or more surface points belonging to the first digital 3D representation based on the position of 3D frames associated with the third digital 3D representation, whereby the accuracy of the first digital 3D representation is improved.
Disclosed are methods and digital tools for deriving tooth condition information for a patient's teeth, for populating a digital dental chart with derived tooth condition information, and for generating an electronic data record containing such information.
A61B 5/00 - Measuring for diagnostic purposes Identification of persons
A61B 5/103 - Measuring devices for testing the shape, pattern, size or movement of the body or parts thereof, for diagnostic purposes
A61B 6/51 - Apparatus or devices for radiation diagnosisApparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body partsApparatus or devices for radiation diagnosisApparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific clinical applications for dentistry
G06T 7/32 - Determination of transform parameters for the alignment of images, i.e. image registration using correlation-based methods
G06T 7/70 - Determining position or orientation of objects or cameras
G16H 10/60 - ICT specially adapted for the handling or processing of patient-related medical or healthcare data for patient-specific data, e.g. for electronic patient records
G16H 30/20 - ICT specially adapted for the handling or processing of medical images for handling medical images, e.g. DICOM, HL7 or PACS
G16H 30/40 - ICT specially adapted for the handling or processing of medical images for processing medical images, e.g. editing
G16H 50/20 - ICT specially adapted for medical diagnosis, medical simulation or medical data miningICT specially adapted for detecting, monitoring or modelling epidemics or pandemics for computer-aided diagnosis, e.g. based on medical expert systems
91.
SYSTEM AND METHOD FOR COMPRESSION OF INTRAORAL SCAN DATA
An intraoral scanning system (102) including a handheld intraoral scanning device (104). The handheld intraoral scanning device (104) captures intraoral scan data (110) associated with a user. The intraoral scan data includes texture data (110A) and three-dimensional (3D) data (110B) captured during an intraoral scanning session of the user. The handheld intraoral scanning device (104) generates compressed texture data (112A) associated with the texture data (110A) based on an application of a first compression operation (502) on the texture data (110A). The handheld intraoral scanning device (104) generates compressed 3D data (112B) associated with the 3D data (110B) based on the application of the second compression operation (602) on the 3D data (110B). The handheld intraoral scanning device (104) transmits a combination of the compressed texture data (112A) and the compressed 3D data (112B), as compressed intraoral scan data (112), to one or more client devices (106).
H04N 19/597 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding specially adapted for multi-view video sequence encoding
H04N 19/61 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive coding
The present disclosure relates to an intraoral scanning system (102) that is configured to generate an overlay of correlated 2D inner geometry features on a 3D surface model for dental objects. The system is configured to receive visible light information (128) and IR information (130) from one or more sensors and generate a 3D surface model (118) of a dental object (!46) based on the visible light information and generate a plurality of 2D internal feature images (302, 306, 310, 314) based on the visible light information and the IR information, process the plurality of 2D internal feature images to correlate the 2D inner geometry features of the dental object with at least one reference frame (712) of the dental object in the 3D surface model; and output an overlay (120) of the correlated 2D inner geometry features of the dental object on the 3D surface model. The plurality of 2D internal feature images indicates 2D inner geometry features for the dental object.
The present disclosure relates to a 3D scanner system comprising an intraoral scanner comprising: an elongated housing comprising a distal end for being inserted into an oral cavity, wherein the housing comprises an aperture in a sidewall of the distal end of the housing; and a window arranged in the aperture of the housing; and/or a sleeve mounted on the outside of the elongated housing; the 3D scanner system further comprising one or more processors operatively connected to the intraoral scanner, said processors configured to receive one or more two-dimensional images comprising a plurality of pattern features, wherein the images comprises one or more artifacts arising from reflections from the window and/or sleeve; and provide the two-dimensional image(s) as input to a parameterized model trained to determine the position of at least a subset of the pattern features in the image(s), while suppressing or ignoring the artifacts.
09 - Scientific and electric apparatus and instruments
42 - Scientific, technological and industrial services, research and design
Goods & Services
Downloadable computer software for use in the field of
dentistry, namely, for use in scanning, measuring and
automated documentation of changes in patients' dentition
over time; downloadable computer software for use in
dentistry, namely, for AI assistive detection and visual
monitoring of surface caries, tooth wear, gingival
recession, plaque, and proximal caries and for enabling the
monitoring and automated documentation of changes in
patients' dentition over time; downloadable computer
software applications for enabling patients to access the
documentation of the status of their dentition and the
changes in their dentition over time; downloadable mobile
applications for retrieving and displaying dental health
information. Software as a service (SaaS) featuring software for use in
the field of dentistry, namely, for use in scanning,
measuring and automated documentation of changes in
patients' dentition over time; software as a service (SaaS)
featuring software for use in dentistry, namely, for AI
assistive detection and visual monitoring of surface caries,
tooth wear, gingival recession, plaque, and proximal caries
and for enabling the monitoring and automated documentation
of changes in patients' dentition over time.
95.
AUTOMATIC ASSESMENT OF SOFT TISSUE RECESSION IN AN ORAL CAVITY
The disclosure generally relates to a computer-implemented method for determining a health state of soft tissue in an oral cavity. In more detail, the method may utilize a trained machine learning model that has been trained on the basis of annotated ground truth data to determine a measure for soft tissue recession in an oral cavity.
G16H 50/20 - ICT specially adapted for medical diagnosis, medical simulation or medical data miningICT specially adapted for detecting, monitoring or modelling epidemics or pandemics for computer-aided diagnosis, e.g. based on medical expert systems
G16H 30/40 - ICT specially adapted for the handling or processing of medical images for processing medical images, e.g. editing
A scanner includes a camera, a light source for generating a probe light incorporating a spatial pattern, an optical system for transmitting the probe light towards the object and for transmitting at least a part of the light returned from the object to the camera, a focus element within the optical system for varying a position of a focus plane of the spatial pattern on the object, unit for obtaining at least one image from said array of sensor elements, unit for evaluating a correlation measure at each focus plane position between at least one image pixel and a weight function, a processor for determining the in-focus position(s) of each of a plurality of image pixels for a range of focus plane positions, or each of a plurality of groups of image pixels for a range of focus plane positions, and transforming in-focus data into 3D real world coordinates.
A61B 5/00 - Measuring for diagnostic purposes Identification of persons
A61B 5/107 - Measuring physical dimensions, e.g. size of the entire body or parts thereof
G01B 11/25 - Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures by projecting a pattern, e.g. moiré fringes, on the object
97.
METHOD FOR GENERATING DENTAL MODELS BASED ON AN OBJECTIVE FUNCTION
Disclosed is a computer-implemented method of generating a dental model based on an objective function output, including creating an objective function including at least one quality estimation function which trains at least one machine learning method that generates quality estimation output, and an objective function output is the output of the objective function providing a model as an input data to the objective function and generating model-related objective function output; and modifying the model based on the model-related objective function output to transform the model to a generated model, wherein the generated model is the dental model.
Diagnostic and dental apparatus and instruments; optical and x-ray scanners for diagnostic, dental, odontologic, orthodontic purposes and for dentistry; scanners for intra-oral optical dental purposes; dental optical coherence tomography (OCT) scanners; intraoral scanners for use in the detection and visual monitoring of surface caries, tooth wear, gingival recession, plaque, and proximal caries.
99.
METHOD, DEVICE AND SYSTEM FOR CORRELATING AT LEAST ONE ADDITIONAL 2D-IMAGE TO A 3D-REPRESENTATION OF AT LEAST A PART OF TOOTH
The present disclosure provides a computer-implemented method for correlating at least one infrared 2D-image to a 3D-representation of at least a part of a tooth displayed in a graphical user-interface, of a hand-held scanning device, on a screen, including the steps of: obtaining a first set of 2D-images of the at least part of the tooth; forming a 3D-representation of the at least a part of the tooth from the first set of 2D-images; displaying, in the graphical user-interface, the 3D-representation; obtaining a second set of 2D-images, wherein the second set of 2D images are infrared 2D-images acquired within the at least part of the tooth; displaying, in the user-interface, at least one of the 2D-images from the second set of 2D-images; displaying, in the user-interface, a manipulator configured to change between 2D-images in the second set of 2D-images.
An intraoral scanner system (100) includes a handheld intraoral scanner (101) configured to obtain light information reflected from a dental object (108) inside an oral cavity through a field-of-view (105) of the handheld intraoral scanner (101), one or more processors configured to process the light information and to generate a digital 3D model (103) of the dental object (108) based on the processed light information, and a graphical user interface (102) configured to display the digital 3D model (103). The one or more processors are configured to display in real-time and on the graphical user interface (102) a field-of-view frame (104) representing a position of the field-of-view (105) of the handheld intraoral scanner (101) and generate a correction feedback signal that corresponds to the field-of-view frame (104), and wherein the correction feedback signal includes a suggested correction of the position of the field-of-view (105) of the handheld intraoral scanner (101).
A61B 1/24 - Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopesIlluminating arrangements therefor for the mouth, i.e. stomatoscopes, e.g. with tongue depressorsInstruments for opening or keeping open the mouth
A61B 1/00 - Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopesIlluminating arrangements therefor
