A computer-implemented method and system of digitally segmenting teeth in a digital model comprises generating a panoramic image from a 3D digital model of a patient's dentition, labeling, using a first trained neural network, the panoramic image to provide a labeled panoramic image, mapping the labeled panoramic image to corresponding coarse digital surface triangle labels in the 3D digital model to provide a labeled 3D digital model, and segmenting the labeled 3D digital model to provide a segmented 3D digital model. A computer-implemented method and system of generating a panoramic image comprises determining, using a trained neural network, digital tooth bounding region(s) corresponding to digital teeth from a 2D depth map of a patient's dentition, connecting digital tooth bounding region(s) by a spline, determining sampled digital surface points from the sampled spline points; and determining associated digital surface points corresponding to each sampled digital surface point.
A zirconia ceramic material for use in dental applications is provided comprising an yttria-stabilized zirconia material comprising from 4.5 mol % to 5.1 mol % yttria. Optionally, the zirconia ceramic has a coloring agent that may comprise one or more metals selected from terbium (Tb), chromium (Cr), erbium (Er), and cobalt (Co), and further, may, optionally, comprise alumina, which if present may be in an amount from 0 wt % to 0.25 wt %. The zirconia ceramic materials exhibit both enhanced translucency and a flexural strength of at least 800 MPa when fully sintered.
A computer-implemented method/system/instructions of automatic margin line proposal includes receiving a 3D digital model of at least a portion of a jaw, the 3D digital model including a digital preparation tooth; determining, using a first trained neural network, an inner representation of the 3D digital model; and determining, using a second trained neural network, a margin line proposal from a base margin line and the inner representation of the 3D digital model.
G06F 30/23 - Design optimisation, verification or simulation using finite element methods [FEM] or finite difference methods [FDM]
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
A method is provided for shaping a custom dental restoration from a preform, wherein the preform comprises a preform body and a preform stem. A method is further disclosed for generating one or more nesting positions for the restoration design within the geometry of the preform body relative to the position of the preform stem. A method is further disclosed for generating machining instructions based on the selected nesting position to optimize machining for chair-side applications.
A method is provided for shaping a custom dental restoration from a preform, wherein the preform comprises a preform body and a preform stem. A method is further disclosed for generating one or more nesting positions for the restoration design within the geometry of the preform body relative to the position of the preform stem. A method is further disclosed for generating machining instructions based on the selected nesting position to optimize machining for chair-side applications.
A computer-implemented method/system/medium includes receiving a two dimensional (“2D”) digital image including at least a portion of a person's dentition; receiving a three dimensional (“3D”) digital surface model of the person's dentition; receiving one or more 3D digital surface model key points selected on the 3D digital surface model; receiving one or more corresponding 2D digital image key points selected on the 2D digital image; and fitting a camera model using the one or more 3D digital surface model key points and the one or more corresponding 2D digital image key points to align the 3D digital surface model with the 2D digital image.
A computer-implemented method and system compresses CT reconstruction images and can include: receiving a volumetric density file including one or more voxels; replacing one or more voxel density values below an air density value with the air density value; replacing one or more voxel density values above a material density value with the material density value; determining one or more voxels of interest; replacing one or more non-interesting voxel density values below a material surface density with the air density value; replacing one or more non-interesting voxel density values above the material surface density with the material density value; quantizing all voxels to provide a reduced volume image; and compressing the reduced volume image to provide a compressed volume image.
Disclosed are example embodiments of methods and systems for identifying and quantifying manufacturing defects of a manufactured dental prosthesis. Certain embodiments of the system for performing quality control on manufactured dental prostheses includes: a quality control module configured to determine whether the dental prosthesis is a good or a defective product based at least on a differences model generated by comparing a design model and a scanned model of the manufactured dental prosthesis.
A computer-implemented system and method of automated milling machine calibration includes receiving a calibration alert from a milling machine; performing automated calibration on the milling machine to determine one or more offsets; and automatically updating milling production instructions with the one or more offsets. A non-transitory computer readable medium storing executable computer program instructions to provide automated milling machine calibration, the computer program instructions including instructions for: receiving a calibration alert from a milling machine; performing automated calibration on the milling machine to determine one or more offsets; and automatically updating milling production instructions with the one or more offsets. A computer-implemented method includes receiving a 3D virtual calibration block scan including a first surface region, a second surface region, and a curved surface region; determining an X-offset based on the first surface region and the second surface region; and determining a Z-offset based on the curved surface region.
B23C 9/00 - Details or accessories so far as specially adapted to milling machines or cutters
B23Q 15/20 - Automatic control or regulation of feed movement, cutting velocity or position of tool or work before or after the tool acts upon the workpiece
A computer-implemented method of processing a digital dental impression includes determining one or more first digital surface regions visible from a first side of the digital dental impression along an occlusion axis and one or more second digital surface regions visible from a second side of the digital dental impression along the occlusion axis, segmenting the digital dental impression into one or more digital segments and determining the one or more digital segments as a first digital segment or a second digital segment based on the majority of digital surface regions in the one or more digital segments.
A system and method of processing a CT scan includes receiving a plurality of radiographs and determining an axis of rotation per scan from the plurality of radiographs prior to CT reconstruction.
A physical preform suitable for a screw retained dental restoration (“SRR”) includes a sintered preform and an insert receiving region within at least a portion of the sintered preform. A computer-implemented method of providing a screw retained dental restoration includes receiving a virtual restoration mode and generating one or more virtual spiral toolpaths corresponding to a virtual restoration shape of the virtual restoration model. A computer-implemented method of correcting preform placement during milling includes probing one or more surface points of a preform mounted to a milling machine using a grinding bur of the milling machine and determining one or more preform alignment parameters based on a distance traveled by the grinding bur to the one or more surface points.
Computer-implemented methods for generating a 3D dental prosthesis model are disclosed herein. The methods comprise training a deep neural network to generate a first 3D dental prosthesis model using a training data set; receiving a patient scan data representing at least a portion of a patient's dentition; and generating, using the trained deep neural network, the first 3D dental prosthesis model based on the received patient scan data.
09 - Scientific and electric apparatus and instruments
10 - Medical apparatus and instruments
42 - Scientific, technological and industrial services, research and design
44 - Medical, veterinary, hygienic and cosmetic services; agriculture, horticulture and forestry services
Goods & Services
Athletic equipment, namely, mouth guards for measuring the
location and force of an impact for contact and non-contact
sports; wearable activity trackers; impact measuring
devices, namely, devices for measuring the location and
force of an impact for athletes in contact and noncontact
sports; athletic equipment, namely, mouth guards;
mouthguards for athletic use having embedded sensors for
monitoring human motion and physiological parameters to
track fitness performance, goals, and statistics. Health monitoring devices in the nature of intraoral
appliances for capturing and transmitting physiological
metrics to be available on an online analytic system;
human-wearable devices in the nature of intraoral appliances
with sensors that monitor human movement and physiological
parameters of a person wearing the device. Software as a service (SAAS) services featuring software for
accessing data analytics based on physiological metrics for
purposes of health monitoring and physical performance. Providing health information regarding personalized data
analytics to individual based on physiological metrics for
purpose of health monitoring and physical performance via an
Internet website and mobile portal.
16.
DAMAGE-RESISTANT ZIRCONIA SINTERED BODY WITH HIGH STRENGTH, HIGH TOUGHNESS AND ANTIBACTERIAL PROPERTIES
A method that includes: (a) ceramic injection molding a granulated mixture of yttria-stabilized zirconia powder and a thermoplastic organic binder resulting in an injection molded ceramic body; (b) heat treating the injection molded ceramic body under conditions sufficient for removing the thermoplastic organic binder from the injection molded body; (c) applying a solution to the injection molded ceramic body, the solution comprising a tantalum-containing material, a niobium-containing material, or a mixture of a tantalum-containing material and a niobium-containing material and penetrating at least a portion of the injection molded ceramic body with the solution; (d) sintering the injection molded ceramic body; and (e) hot isostatically pressing the sintered injection molded ceramic body.
Disclosed are example embodiments of methods and systems for improving teeth appearance and repositioning of the teeth. One of the systems is an appliance that includes: an outer shell with simulated teeth that approximate a final teeth arrangement; and inner cavities configured to receive a patient's teeth and to incrementally reposition the teeth toward the final teeth arrangement.
A61C 5/20 - Repairing attrition damage, e.g. facets
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
09 - Scientific and electric apparatus and instruments
10 - Medical apparatus and instruments
42 - Scientific, technological and industrial services, research and design
44 - Medical, veterinary, hygienic and cosmetic services; agriculture, horticulture and forestry services
Goods & Services
Mouth guards for measuring the location and force of an
impact for contact and non-contact sports for athletic use;
wearable activity trackers; impact measuring devices,
namely, devices for measuring the location and force of an
impact for athletes in contact and non-contact sports; mouth
guards for athletic use; mouth guards for athletic use
having embedded sensors for monitoring human motion and
physiological parameters to track fitness performance,
goals, and statistics. Health monitoring devices in the nature of intraoral
appliances for capturing and transmitting physiological
metrics to be available on an online analytic system;
human-wearable devices in the nature of intraoral appliances
with sensors that monitor human movement and physiological
parameters of a person wearing the device. Software as a service (SaaS) services featuring software for
accessing data analytics based on physiological metrics for
purposes of health monitoring and physical performance. Providing an Internet website and mobile portal featuring
information regarding personalized data analytics to
individual based on physiological metrics for purpose of
health monitoring and physical performance.
09 - Scientific and electric apparatus and instruments
10 - Medical apparatus and instruments
42 - Scientific, technological and industrial services, research and design
44 - Medical, veterinary, hygienic and cosmetic services; agriculture, horticulture and forestry services
Goods & Services
Mouth guards for measuring the location and force of an
impact for contact and non-contact sports for athletic use;
wearable activity trackers; impact measuring devices,
namely, devices for measuring the location and force of an
impact for athletes in contact and non-contact sports; mouth
guards for athletic use; mouth guards for athletic use
having embedded sensors for monitoring human motion and
physiological parameters to track fitness performance,
goals, and statistics. Health monitoring devices in the nature of intraoral
appliances for capturing and transmitting physiological
metrics to be available on an online analytic system;
human-wearable devices in the nature of intraoral appliances
with sensors that monitor human movement and physiological
parameters of a person wearing the device. Software as a service (SaaS) services featuring software for
accessing data analytics based on physiological metrics for
purposes of health monitoring and physical performance. Providing an Internet website and mobile portal featuring
information regarding personalized data analytics to
individual based on physiological metrics for purpose of
health monitoring and physical performance.
A method for making an intraoral device that includes mixing at least one oligomer, at least one monomer, at least one crosslinker, at least one silanized glass filler, and at least one photoinitiator resulting in a mixture; forming the resulting mixture into an intraoral device shape using a three-dimensional printing method; and light curing the mixture using the three-dimensional printing method to obtain the intraoral device.
A polymeric resin that includes a photocured reaction product of at least one urethane (meth)acrylate polymer that includes at least one polycarbonate unit; at least one monofunctional monomer; and at least one crosslinking agent.
C09D 187/00 - Coating compositions based on unspecified macromolecular compounds, obtained otherwise than by polymerisation reactions only involving unsaturated carbon-to-carbon bonds
24.
Method of masking a dental support structure of a dental prosthesis made of highly translucent ceramic material
A method for masking the appearance of a support structure underlying a highly translucent ceramic dental restoration is provided. The porous form of a zirconia ceramic dental restoration is treated with a liquid masking composition comprising 0.4 wt % to 50 wt % of one or more masking agents. The masking composition is applied to the internal surface of a restoration and a region of the facial surface of the restoration that is opposite the internal surface. After application of the masking compositions, treated zirconia restoration is sintered to greater than 98% theoretical density.
A61K 6/80 - Preparations for artificial teeth, for filling teeth or for capping teeth
A61K 6/15 - Compositions characterised by their physical properties
A61K 6/818 - Preparations for artificial teeth, for filling teeth or for capping teeth comprising ceramics comprising zirconium oxide
A61K 6/84 - Preparations for artificial teeth, for filling teeth or for capping teeth comprising metals or alloys
C04B 35/48 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxides based on zirconium or hafnium oxides or zirconates or hafnates
C04B 35/63 - Preparing or treating the powders individually or as batches using additives specially adapted for forming the products
A computer-implemented method and system of determining a material surface from a volumetric density file includes generating a density frequency distribution of a volumetric density file of a dental impression and determining an iso-value of density between air and a particular material in the density frequency distribution. A computer-implemented method and system of creating a digital model from a CT scan of a physical dental impression includes selecting an iso-value of density for a digital volumetric density file having one or more voxels, generating one or more digital surface points in virtual 3D space for each of one or more voxels, and selecting a subset of digital surface points from the one or more digital surface points. A computer-implemented method and system of optimizing a digital surface includes moving one or more digital surface points to satisfy a criteria of optimum digital surface selection.
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 system and method can determine one or more CT scanner calibration parameters from a plurality of calibration object projections in a plurality of radiographs.
G01N 23/046 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and forming images of the material using tomography, e.g. computed tomography [CT]
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
G01N 23/083 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and measuring the absorption the radiation being X-rays
A method that includes collecting scrap ZrO2 material; reducing sizes of the scrap ZrO2 material to produce a reduced-size scrap ZrO2 material; preparing a ceramic slurry comprising the reduced-size scrap ZrO2 material, deionized water, and at least one dispersant; milling the ceramic slurry to produce a milled ZrO2 slurry, wherein the milled ZrO2 slurry comprises a ZrO2 powder with a particle size distribution D(50) of 0.05 μm to 1.0 μm; and casting the milled ZrO2 slurry to prepare a ceramic block.
A zirconia body includes a sintered yttria-stabilized zirconia ceramic material, stabilized by 3 mol % to 4.8 mol % yttria, wherein the sintered ceramic material has an opacity of 52% to 65% (when measured on a 1 mm thick fully sintered ceramic body), an average grain size of less than 175 nm, a fracture toughness greater than 2.5 MPa·m1/2, and a millability number<75.
Systems and methods are provided for scanning a dental impression to obtain a digital model of a patient's dentition as an input to computer aided design (CAD) and computer aided manufacturing (CAM) methods for producing dental prostheses.
A computer-implemented method of generating a reduction coping includes receiving a digital model comprising a virtual preparation tooth, determining one or more virtual reduction regions on the virtual preparation tooth, and generating a virtual reduction coping comprising one or more exposed regions corresponding to the one or more virtual reduction regions. A method of generating a physical reduction coping includes receiving a 3D digital model of a virtual reduction coping and performing additive manufacturing to generate a physical reduction coping from the virtual reduction coping.
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
31.
Method for Enhancing Mechanical Properties in Sintered Ceramic Bodies Having Applications in Dental Restorations
A method for enhancing mechanical properties of sintered, zirconia ceramic bodies and zirconia ceramic dental restorations is provided. A porous or pre-sintered stage of a ceramic body may be treated with a tantalum-containing composition prior to sintering. Alternatively, zirconia ceramic powder may be coated with a tantalum-containing composition prior to forming a shaped ceramic body. After sintering, the resulting ceramic bodies have enhanced mechanical properties, such as greater fracture toughness, without a significant decrease in optical properties.
C04B 41/00 - After-treatment of mortars, concrete, artificial stone or ceramicsTreatment of natural stone
A61K 6/20 - Protective coatings for natural or artificial teeth, e.g. sealings, dye coatings or varnish
A61K 6/818 - Preparations for artificial teeth, for filling teeth or for capping teeth comprising ceramics comprising zirconium oxide
C04B 35/48 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxides based on zirconium or hafnium oxides or zirconates or hafnates
Computer-implemented method and system automatically detects an out-of-view CT scan by receiving a voxel density file, determining a threshold iso-value of density between air density and a material density of one or more scanned objects in the voxel density file, and evaluating, using the threshold iso-value of density, one or more horizontal slices of the voxel density file to determine whether at least a portion of the one or more scanned objects is out of view.
Disclosed herein are example embodiments of methods and systems for identifying manufacturing defects of a manufactured dentition model. One of the methods for performing quality control comprises: determining whether the manufactured dentition model is a good or a defective product based on a statistical characteristic of a differences model. The differences model can be generated based on differences between a scanned 3D patient-dentition data and a scanned 3D manufactured-dentition data. The scanned 3D patient-dentition data can be generated using 3D data of a patient's dentition, and the scanned 3D manufactured-dentition data can be generated using 3D data of the manufactured dentition model. The manufactured dentition model can be a 3D printed model.
A method for enhancing optical properties of sintered, zirconia ceramic bodies and zirconia ceramic dental restorations is provided. The porous or pre-sintered stage of a ceramic body is treated with two different yttrium-containing compositions and sintered, resulting in sintered ceramic bodies having enhanced optical properties. The enhanced optical properties may be substantially permanent, remaining for the useful life of the sintered ceramic body.
A61K 6/818 - Preparations for artificial teeth, for filling teeth or for capping teeth comprising ceramics comprising zirconium oxide
A61K 6/822 - Preparations for artificial teeth, for filling teeth or for capping teeth comprising ceramics comprising rare earth metal oxides
B05D 1/02 - Processes for applying liquids or other fluent materials performed by spraying
B05D 1/28 - Processes for applying liquids or other fluent materials performed by transfer from the surfaces of elements carrying the liquid or other fluent material, e.g. brushes, pads, rollers
B05D 3/02 - Pretreatment of surfaces to which liquids or other fluent materials are to be appliedAfter-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
C04B 41/00 - After-treatment of mortars, concrete, artificial stone or ceramicsTreatment of natural stone
C04B 41/50 - Coating or impregnating with inorganic materials
A computer-implemented method and system of digitally segmenting teeth in a digital model comprises generating a panoramic image from a 3D digital model of a patient's dentition, labeling, using a first trained neural network, the panoramic image to provide a labeled panoramic image, mapping the labeled panoramic image to corresponding coarse digital surface triangle labels in the 3D digital model to provide a labeled 3D digital model, and segmenting the labeled 3D digital model to provide a segmented 3D digital model. A computer-implemented method and system of generating a panoramic image comprises determining, using a trained neural network, digital tooth bounding region(s) corresponding to digital teeth from a 2D depth map of a patient's dentition, connecting digital tooth bounding region(s) by a spline, determining sampled digital surface points from the sampled spline points; and determining associated digital surface points corresponding to each sampled digital surface point.
A method is provided for shaping a custom dental restoration from a preform, wherein the preform comprises a preform body and a preform stem. A method is further disclosed for generating one or more nesting positions for the restoration design within the geometry of the preform body relative to the position of the preform stem. A method is further disclosed for generating machining instructions based on the selected nesting position to optimize machining for chair-side applications.
A computer-implemented method and system of CT reconstruction can include receiving one or more CT projection images; performing smooth filtering on the one or more CT projection images to generate one or more smooth boundary filtered images; and back-projecting the one or more smooth boundary filtered images.
09 - Scientific and electric apparatus and instruments
10 - Medical apparatus and instruments
42 - Scientific, technological and industrial services, research and design
44 - Medical, veterinary, hygienic and cosmetic services; agriculture, horticulture and forestry services
Goods & Services
(1) Athletic equipment, namely, mouth guards for measuring the location and force of an impact for contact and non-contact sports; wearable activity trackers; impact measuring devices, namely, devices for measuring the location and force of an impact for athletes in contact and noncontact sports; athletic equipment, namely, mouth guards; mouthguards for athletic use having embedded sensors for monitoring human motion and physiological parameters to track fitness performance, goals, and statistics.
(2) Health monitoring devices in the nature of intraoral appliances for capturing and transmitting physiological metrics to be available on an online analytic system; human-wearable devices in the nature of intraoral appliances with sensors that monitor human movement and physiological parameters of a person wearing the device. (1) Software as a service (SAAS) services featuring software for accessing data analytics based on physiological metrics for purposes of health monitoring and physical performance.
(2) Providing health information regarding personalized data analytics to individual based on physiological metrics for purpose of health monitoring and physical performance via an Internet website and mobile portal.
40.
High strength and translucency dental ceramic materials, devices, and methods
A zirconia ceramic material for use in dental applications is provided comprising an yttria-stabilized zirconia material comprising from 4.5 mol % to 5.1 mol % yttria. Optionally, the zirconia ceramic has a coloring agent that may comprise one or more metals selected from terbium (Tb), chromium (Cr), erbium (Er), and cobalt (Co), and further, may, optionally, comprise alumina, which if present may be in an amount from 0 wt % to 0.25 wt %. The zirconia ceramic materials exhibit both enhanced translucency and a flexural strength of at least 800 MPa when fully sintered.
A method is provided for shaping a custom anterior dental restoration from a preform, wherein the preform comprises a preform body and a preform stem. A method is further disclosed for generating one or more nesting positions for the restoration design within the geometry of the preform body relative to the position of the preform stem. A method is further disclosed for generating machining instructions based on the selected nesting position to optimize machining for chair-side applications.
Taking a digital implant or abutment level digital impression by means of intra-oral, computed tomography or other imaging method provides the restorative doctor and laboratory accurate and effective data for determining the implant position, angulation and locking feature orientation without a physical impression. Such data is correlated with a digital library to produce an output which enables design and fabrication of an accurate restorative device such as a prosthetic tooth or crown. In this way the time-consuming, costly and error prone mechanical replication of the relevant dental anatomy is obviated.
A61B 5/055 - Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fieldsMeasuring using microwaves or radio waves involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance imaging
A61B 6/14 - Applications or adaptations for dentistry
A61C 8/00 - Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereonDental implantsImplanting tools
09 - Scientific and electric apparatus and instruments
10 - Medical apparatus and instruments
42 - Scientific, technological and industrial services, research and design
44 - Medical, veterinary, hygienic and cosmetic services; agriculture, horticulture and forestry services
Goods & Services
(1) Mouth guards for measuring the location and force of an impact for contact and non-contact sports for athletic use; wearable activity trackers; impact measuring devices, namely, devices for measuring the location and force of an impact for athletes in contact and non-contact sports; mouth guards for athletic use; mouth guards for athletic use having embedded sensors for monitoring human motion and physiological parameters to track fitness performance, goals, and statistics.
(2) Health monitoring devices in the nature of intraoral appliances for capturing and transmitting physiological metrics to be available on an online analytic system; human-wearable devices in the nature of intraoral appliances with sensors that monitor human movement and physiological parameters of a person wearing the device. (1) Software as a service (SaaS) services featuring software for accessing data analytics based on physiological metrics for purposes of health monitoring and physical performance.
(2) Providing an Internet website and mobile portal featuring information regarding personalized data analytics to individual based on physiological metrics for purpose of health monitoring and physical performance.
09 - Scientific and electric apparatus and instruments
10 - Medical apparatus and instruments
42 - Scientific, technological and industrial services, research and design
44 - Medical, veterinary, hygienic and cosmetic services; agriculture, horticulture and forestry services
Goods & Services
(1) Mouth guards for measuring the location and force of an impact for contact and non-contact sports for athletic use; wearable activity trackers; impact measuring devices, namely, devices for measuring the location and force of an impact for athletes in contact and non-contact sports; mouth guards for athletic use; mouth guards for athletic use having embedded sensors for monitoring human motion and physiological parameters to track fitness performance, goals, and statistics.
(2) Health monitoring devices in the nature of intraoral appliances for capturing and transmitting physiological metrics to be available on an online analytic system; human-wearable devices in the nature of intraoral appliances with sensors that monitor human movement and physiological parameters of a person wearing the device. (1) Software as a service (SaaS) services featuring software for accessing data analytics based on physiological metrics for purposes of health monitoring and physical performance.
(2) Providing an Internet website and mobile portal featuring information regarding personalized data analytics to individual based on physiological metrics for purpose of health monitoring and physical performance.
45.
Highly Translucent Zirconia Material, Device, Methods of Making the Same, and Use Thereof
A zirconia ceramic material for use in dental applications is provided comprising an yttria-stabilized zirconia material stabilized with 5 mol % yttria to 8 mol % yttria, and methods for making a sintered body from the ceramic material. The zirconia ceramic materials exhibit both enhanced translucency and a flexural strength of at least 300 MPa, or at least 500 MPa, when fully sintered.
C04B 35/48 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxides based on zirconium or hafnium oxides or zirconates or hafnates
A61K 6/824 - Preparations for artificial teeth, for filling teeth or for capping teeth comprising ceramics comprising transition metal oxides
A61K 6/818 - Preparations for artificial teeth, for filling teeth or for capping teeth comprising ceramics comprising zirconium oxide
46.
Polychromatic Zirconia Bodies and Methods of Making the Same
A ceramic body is provided that is suitable for use in dental applications to provide a natural aesthetic appearance. A colorized ceramic body is formed that has at least one color region and a color gradient region. A ceramic body is formed having at least two color regions and a color gradient that forms a transition region between two color regions. A method for making the colorized ceramic body includes unidirectional infiltration of a coloring composition into the ceramic body.
A method and system receives a 3D digital dental model representing at least a portion of a patient's dentition, automatically determines a virtual dental preparation site in the 3D digital dental model using a first neural network, automatically generates a 3D digital dental prosthesis model in the 3D digital dental model using a second trained generative deep neural network and automatically routes the 3D digital dental model comprising the virtual 3D dental prosthesis model to a quality control (“QC”) user.
A computer-implemented method and system of virtual dental restoration design automation includes: receiving a 3D virtual dental model of at least a portion of a patient's dentition, the 3D virtual dental model comprising at least one virtual preparation tooth, the virtual preparation tooth comprising a digital representation of a physical preparation tooth prepared by a dentist;
A computer-implemented method and system of virtual dental restoration design automation includes: receiving a 3D virtual dental model of at least a portion of a patient's dentition, the 3D virtual dental model comprising at least one virtual preparation tooth, the virtual preparation tooth comprising a digital representation of a physical preparation tooth prepared by a dentist;
performing an automated virtual restoration design using the 3D virtual dental model; displaying virtually to the dentist one or more physical preparation tooth issues detected while performing the automated virtual restoration design; and displaying virtually to the dentist a generated virtual restoration for one or more adjustments where no physical preparation tooth issues are detected while performing the automated virtual restoration design.
A method and system receives a 3D digital dental model representing at least a portion of a patient's dentition, automatically determines a virtual dental preparation site in the 3D digital dental model using a first neural network, automatically generates a 3D digital dental prosthesis model in the 3D digital dental model using a second trained generative deep neural network and automatically routes the 3D digital dental model comprising the virtual 3D dental prosthesis model to a quality control ("QC") user.
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
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
G16H 30/40 - ICT specially adapted for the handling or processing of medical images for processing medical images, e.g. editing
A computer-implemented method and system of virtual dental restoration design automation includes: receiving a 3D virtual dental model of at least a portion of a patient's dentition, the 3D virtual dental model comprising at least one virtual preparation tooth, the virtual preparation tooth comprising a digital representation of a physical preparation tooth prepared by a dentist; performing an automated virtual restoration design using the 3D virtual dental model; displaying virtually to the dentist one or more physical preparation tooth issues detected while performing the automated virtual restoration design; and displaying virtually to the dentist a generated virtual restoration for one or more adjustments where no physical preparation tooth issues are detected while performing the automated virtual restoration design.
A61B 34/10 - Computer-aided planning, simulation or modelling of surgical operations
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
G05B 19/4093 - Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by part programming, e.g. entry of geometrical information as taken from a technical drawing, combining this with machining and material information to obtain control information, named part programme, for the NC machine
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
A method that includes applying a liquid pre-coloring solution to a gum section of a zirconia dental prosthesis, wherein the liquid pre-coloring solution comprises erbium in an amount of at least 10 wt %, based on the total weight of the composition.
A computer-implemented method and system compresses CT reconstruction images and can include: receiving a volumetric density file including one or more voxels; replacing one or more voxel density values below an air density value with the air density value; replacing one or more voxel density values above a material density value with the material density value; determining one or more voxels of interest; replacing one or more non-interesting voxel density values below a material surface density with the air density value; replacing one or more non-interesting voxel density values above the material surface density with the material density value; quantizing all voxels to provide a reduced volume image; and compressing the reduced volume image to provide a compressed volume image.
A method for coloring a porous ceramic dental body that includes:
applying at least one coating of a liquid coloring composition to at least a portion of a surface area of the porous ceramic dental body, the liquid coloring composition comprising:
(a) at least one opaquing agent comprising a material comprising Zn, Al, Si, or a combination thereof;
(b) at least one coloring agent comprising a material comprising Fe, Ni, Cu, Mn, Co, Cr, Mo, Pr, Nd, Er, Ce, Tb, or a combination thereof,
(c) at least one wetting agent; and
(d) at least one solvent; and
sintering the coated porous ceramic dental body to obtain a fully sintered ceramic body having a density that is at least 98% of the theoretical density.
A computer-implemented method, system, and instructions can include receiving a reconstructed volume of an object; determining an air density and a material density from the reconstructed volume of the object; subdividing the reconstructed volume into one or more blocks, each block comprising one or more voxels; determining one or more contrast blocks within the reconstructed volume; and determining a reconstruction quality based on the number of contrast blocks in the reconstructed volume.
A computer-implemented method of processing a digital dental impression includes determining one or more first digital surface regions visible from a first side of the digital dental impression along an occlusion axis and one or more second digital surface regions visible from a second side of the digital dental impression along the occlusion axis, segmenting the digital dental impression into one or more digital segments and determining the one or more digital segments as a first digital segment or a second digital segment based on the majority of digital surface regions in the one or more digital segments.
Disclosed are example embodiments of a milling bur specifically designed to mill a dental prosthesis from a full-sintered zirconia blank. The milling bur comprises a milling tip configured to have a factor of safety of at least 2 by having a first coverage-percentage of grinding particles covering a surface area of the tip of the milling bur. The factor of safety is a number of times the milling bur can fully mill a dental prosthesis from a fully-sintered zirconia blank.
Antimicrobial polymer composite materials are disclosed that are suitable for making oral devices used in dental applications, such as denture bases. Acrylic resin composite materials comprising antimicrobial polymers and antimicrobial fillers provide reduction in common oral microorganisms after long-term aging, with reduced release rate of antimicrobial agents from the composite material. Antimicrobial polymers are prepared from compositions comprising acrylate and/or methacrylate monomers and polymerizable quaternary ammonium silicon-containing compounds.
A61K 31/7016 - Disaccharides, e.g. lactose, lactulose
A61C 13/20 - Methods or devices for soldering, casting, moulding or melting
A61K 9/00 - Medicinal preparations characterised by special physical form
C08F 2/46 - Polymerisation initiated by wave energy or particle radiation
C08F 2/50 - Polymerisation initiated by wave energy or particle radiation by ultraviolet or visible light with sensitising agents
C08F 267/06 - Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated polycarboxylic acids or derivatives thereof as defined in group on to polymers of esters
C08G 61/04 - Macromolecular compounds containing only carbon atoms in the main chain of the macromolecule, e.g. polyxylylenes only aliphatic carbon atoms
A method for making a ceramic body comprised of a ceramic material having an inhibitory effect on bacterial growth is provided. A dental prosthesis may be made of a ceramic material that comprises a molybdenum-containing component on a portion of the prosthesis that contacts the gingival surface of a patient. In one method, a porous zirconia ceramic structure is shaped in the form of a dental prosthesis, and then infiltrated with a molybdenum-containing composition, before sintering to densify the ceramic structure.
A61L 27/42 - Composite materials, i.e. layered or containing one material dispersed in a matrix of the same or different material having an inorganic matrix
C09D 183/14 - Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon onlyCoating compositions based on derivatives of such polymers in which at least two but not all the silicon atoms are connected by linkages other than oxygen atoms
09 - Scientific and electric apparatus and instruments
10 - Medical apparatus and instruments
42 - Scientific, technological and industrial services, research and design
44 - Medical, veterinary, hygienic and cosmetic services; agriculture, horticulture and forestry services
Goods & Services
Athletic equipment, namely, mouth guards for measuring the location and force of an impact for contact and non-contact sports; wearable activity trackers; impact measuring devices, namely, devices for measuring the location and force of an impact for athletes in contact and non-contact sports; athletic equipment, namely, mouth guards; mouthguards for athletic use having embedded sensors for monitoring human motion and physiological parameters to track fitness performance, goals, and statistics Health monitoring devices in the nature of intraoral appliances for capturing and transmitting physiological metrics to be available on an online analytic system; human-wearable devices in the nature of intraoral appliances that monitor human movement and physiological parameters of a person wearing the device Software as a service (SAAS) services, featuring software for accessing data analytics based on physiological metrics for purposes of health monitoring and physical performance Providing an Internet website and mobile portal featuring information regarding personalized data analytics to individual based on physiological metrics for purpose of health monitoring and physical performance
60.
FABRICATION OF POLYCHROMATIC/POLYTRANSLUCENT ZIRCONIA BLOCK FROM PRE-SHADED ZrO2 BLOCK BY INFILTRATION
A pre-shaded ZrO2 block (e.g., a monochromatic block or polychromatic block) is sequentially infiltrated with a yttrium-containing solution at one porous surface and with water at a second porous surface to make a polychromatic/polytranslucent ZrO2 block.
C04B 41/50 - Coating or impregnating with inorganic materials
C04B 41/00 - After-treatment of mortars, concrete, artificial stone or ceramicsTreatment of natural stone
C04B 35/48 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxides based on zirconium or hafnium oxides or zirconates or hafnates
A61K 6/818 - Preparations for artificial teeth, for filling teeth or for capping teeth comprising ceramics comprising zirconium oxide
09 - Scientific and electric apparatus and instruments
10 - Medical apparatus and instruments
42 - Scientific, technological and industrial services, research and design
44 - Medical, veterinary, hygienic and cosmetic services; agriculture, horticulture and forestry services
Goods & Services
Athletic equipment, namely, mouth guards for measuring the location and force of an impact for contact and non-contact sports; wearable activity trackers; impact measuring devices, namely, devices for measuring the location and force of an impact for athletes in contact and non-contact sports; athletic equipment, namely, mouth guards; mouthguards for athletic use having embedded sensors for monitoring human motion and physiological parameters to track fitness performance, goals, and statistics Health monitoring devices in the nature of intraoral appliances for capturing and transmitting physiological metrics to be available on an online analytic system; human-wearable devices in the nature of intraoral appliances with sensors that monitor human movement and physiological parameters of a person wearing the device Software as a service (SAAS) services, namely, featuring software for accessing data analytics based on physiological metrics for purposes of health monitoring and physical performance Providing an Internet website and mobile portal featuring information regarding personalized data analytics to individual based on physiological metrics for purpose of health monitoring and physical performance
09 - Scientific and electric apparatus and instruments
10 - Medical apparatus and instruments
42 - Scientific, technological and industrial services, research and design
44 - Medical, veterinary, hygienic and cosmetic services; agriculture, horticulture and forestry services
Goods & Services
Athletic equipment, namely, mouth guards for measuring the location and force of an impact for contact and non-contact sports; wearable activity trackers; impact measuring devices, namely, devices for measuring the location and force of an impact for athletes in contact and non-contact sports; athletic equipment, namely, mouth guards; mouthguards for athletic use having embedded sensors for monitoring human motion and physiological parameters to track fitness performance, goals, and statistics Health monitoring devices in the nature of intraoral appliances for capturing and transmitting physiological metrics to be available on an online analytic system; human-wearable devices in the nature of intraoral appliances with sensors that monitor human movement and physiological parameters of a person wearing the device Software as a service (SAAS) services featuring software for accessing data analytics based on physiological metrics for purposes of health monitoring and physical performance Providing an Internet website and mobile portal featuring information regarding personalized data analytics to individual based on physiological metrics for purpose of health monitoring and physical performance
A computer-implemented method of automatically determining photon-count to penetrated depth function for a CT reconstruction includes performing one or more test CT reconstructions on one or more radiographs, each test CT reconstruction using a test transfer function, to provide one more test reconstructions and determining a final transfer function from the one or more test reconstructions.
A computer-implemented method/system of determining a trim-line includes receiving a 3D digital dental model; combining the one or more virtual teeth; determining a distance field; determining a first iso-line; determining a back distance field; determining a second iso-line to generate a trim-line. A computer-implemented method/system of segmenting the 3D digital dental model includes receiving a 3D digital dental model; determining an initial virtual tooth location of one or more virtual teeth; constructing a virtual crown line; determining a long axis of one or more virtual teeth; constructing a virtual root line; determining a virtual tooth virtual bounding box; performing an initial segmentation; performing final segmentation.
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
Translucency of a yttria-stabilized zirconia ceramic is improved to achieve even higher translucency than what is currently offered on the market, without greatly altering its mechanical properties. The enhancement is done by incorporating magnesium-containing dopants into the microstructure of yttria-stabilized zirconia ceramic dental ceramics.
C04B 35/48 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxides based on zirconium or hafnium oxides or zirconates or hafnates
C04B 35/626 - Preparing or treating the powders individually or as batches
A system and method can determine one or more CT scanner calibration parameters from a plurality of calibration object projections in a plurality of radiographs.
G01N 23/046 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and forming images of the material using tomography, e.g. computed tomography [CT]
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
G01N 23/083 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and measuring the absorption the radiation being X-rays
68.
Method of making anterior dental restorations from sintered preforms
A method is provided for shaping a custom anterior dental restoration from a preform, wherein the preform comprises a preform body and a preform stem. A method is further disclosed for generating one or more nesting positions for the restoration design within the geometry of the preform body relative to the position of the preform stem. A method is further disclosed for generating machining instructions based on the selected nesting position to optimize machining for chair-side applications.
A computer-implemented method and system of determining a material surface from a volumetric density file includes generating a density frequency distribution of a volumetric density file of a dental impression and determining an iso-value of density between air and a particular material in the density frequency distribution. A computer-implemented method and system of creating a digital model from a CT scan of a physical dental impression includes selecting an iso-value of density for a digital volumetric density file having one or more voxels, generating one or more digital surface points in virtual 3D space for each of one or more voxels, and selecting a subset of digital surface points from the one or more digital surface points. A computer-implemented method and system of optimizing a digital surface includes moving one or more digital surface points to satisfy a criteria of optimum digital surface selection.
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
Computer-implemented method and system automatically detects an out-of-view CT scan by receiving a voxel density file, determining a threshold iso-value of density between air density and a material density of one or more scanned objects in the voxel density file, and evaluating, using the threshold iso-value of density, one or more horizontal slices of the voxel density file to determine whether at least a portion of the one or more scanned objects is out of view.
A computer-implemented method and system of automatically detecting and removing extraneous material from a digital dental impression includes detecting one or more dental features in a digital dental impression, filtering the one or more dental features, digitally joining the one or more dental features, and determining one or more regions of interest from the joined one or more digital dental features.
A method for enhancing optical properties of sintered, zirconia ceramic bodies and zirconia ceramic dental restorations is provided. The porous or pre-sintered stage of a ceramic body is treated with an yttrium-containing composition and sintered, resulting in sintered ceramic bodies having enhanced optical properties. The enhanced optical properties may be substantially permanent, remaining for the useful life of the sintered ceramic body.
A61K 6/818 - Preparations for artificial teeth, for filling teeth or for capping teeth comprising ceramics comprising zirconium oxide
A61K 6/822 - Preparations for artificial teeth, for filling teeth or for capping teeth comprising ceramics comprising rare earth metal oxides
B05D 1/02 - Processes for applying liquids or other fluent materials performed by spraying
B05D 1/28 - Processes for applying liquids or other fluent materials performed by transfer from the surfaces of elements carrying the liquid or other fluent material, e.g. brushes, pads, rollers
B05D 3/02 - Pretreatment of surfaces to which liquids or other fluent materials are to be appliedAfter-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
C04B 41/00 - After-treatment of mortars, concrete, artificial stone or ceramicsTreatment of natural stone
C04B 41/50 - Coating or impregnating with inorganic materials
Methods and apparatuses can include generating computer 3D models of an object, by registering two or more scans of physical models of an object. The scans may be 3D scans registered by a curve-based registration process. A method can include generating a 3D model of a portion of a patient's oral anatomy that can be used in dental restoration design. Scanning workflows can include scanning physical models of an object to obtain a 3D model. A scanner can scan physical models of a patient's dentition to obtain scans used to generate a 3D model of a patient's dentition.
A computer-implemented method/system/instructions of automatic margin line proposal includes receiving a 3D digital model of at least a portion of a jaw, the 3D digital model including a digital preparation tooth; determining, using a first trained neural network, an inner representation of the 3D digital model; and determining, using a second trained neural network, a margin line proposal from a base margin line and the inner representation of the 3D digital model.
A computer-implemented method/system/instructions of automatic margin line proposal includes receiving a 3D digital model of at least a portion of a jaw, the 3D digital model including a digital preparation tooth; determining, using a first trained neural network, an inner representation of the 3D digital model; and determining, using a second trained neural network, a margin line proposal from a base margin line and the inner representation of the 3D digital model.
G06F 30/23 - Design optimisation, verification or simulation using finite element methods [FEM] or finite difference methods [FDM]
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
A polymeric resin that includes a photocured reaction product of at least one urethane (meth)acrylate polymer that includes at least one polycarbonate unit; at least one monofunctional monomer; and at least one crosslinking agent.
C08F 2/46 - Polymerisation initiated by wave energy or particle radiation
B33Y 70/00 - Materials specially adapted for additive manufacturing
C08F 2/50 - Polymerisation initiated by wave energy or particle radiation by ultraviolet or visible light with sensitising agents
C08G 61/04 - Macromolecular compounds containing only carbon atoms in the main chain of the macromolecule, e.g. polyxylylenes only aliphatic carbon atoms
C08G 81/00 - Macromolecular compounds obtained by interreacting polymers in the absence of monomers, e.g. block polymers
C09D 187/00 - Coating compositions based on unspecified macromolecular compounds, obtained otherwise than by polymerisation reactions only involving unsaturated carbon-to-carbon bonds
A computer-implemented method, system, and instructions can include receiving a reconstructed volume of an object; determining an air density and a material density from the reconstructed volume of the object; subdividing the reconstructed volume into one or more blocks, each block comprising one or more voxels; determining one or more contrast blocks within the reconstructed volume; and determining a reconstruction quality based on the number of contrast blocks in the reconstructed volume.
A computer-implemented method and system performs segmentation on at least a portion of the digital jaw to provide one or more digital surface segments, determines a digital tooth center for at least one digital tooth in the digital jaw, determines a digital tooth area around the digital tooth center, deletes one or more surface segments not intersecting with the digital tooth area; and smooths a mesh boundary.
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
A computer-implemented method and system performs segmentation on at least a portion of the digital jaw to provide one or more digital surface segments, determines a digital tooth center for at least one digital tooth in the digital jaw, determines a digital tooth area around the digital tooth center, deletes one or more surface segments not intersecting with the digital tooth area; and smooths a mesh boundary.
A computer-implemented method, system, and instructions can include receiving a reconstructed volume of an object; determining an air density and a material density from the reconstructed volume of the object; subdividing the reconstructed volume into one or more blocks, each block comprising one or more voxels; determining one or more contrast blocks within the reconstructed volume; and determining a reconstruction quality based on the number of contrast blocks in the reconstructed volume.
G01N 23/046 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and forming images of the material using tomography, e.g. computed tomography [CT]
A computer-implemented method of generating a reduction coping includes receiving a digital model comprising a virtual preparation tooth, determining one or more virtual reduction regions on the virtual preparation tooth, and generating a virtual reduction coping comprising one or more exposed regions corresponding to the one or more virtual reduction regions. A method of generating a physical reduction coping includes receiving a 3D digital model of a virtual reduction coping and performing additive manufacturing to generate a physical reduction coping from the virtual reduction coping.
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
84.
System and method for performing quality control of manufactured models
Disclosed herein are example embodiments of methods and systems for identifying manufacturing defects of a manufactured dentition model. One of the methods for performing quality control comprises: determining whether the manufactured dentition model is a good or a defective product based on a statistical characteristic of a differences model. The differences model can be generated based on differences between a scanned 3D patient-dentition data and a scanned 3D manufactured-dentition data. The scanned 3D patient-dentition data can be generated using 3D data of a patient's dentition, and the scanned 3D manufactured-dentition data can be generated using 3D data of the manufactured dentition model. The manufactured dentition model can be a 3D printed model.
A system is disclosed for processing a plurality of customized dental restorations from individual millable material blocks in an automated process. The system comprises processing units that may comprise one or more of a milling center comprising one or more milling units, a plurality of material blocks a separating unit, a scrap disposal unit, a heating unit and a cooling unit. A carrier for holding a plurality of individual workpieces in spaced arrangement is also disclosed for use in the system.
A photo-curable resin composition is suitable for the fabrication of 3D printed objects via digital light processing (DLP) or stereolithography (SLA). The photo-curable resin composition can provide 3D printed objects having lower volumetric shrinkage, high accuracy and favorable mechanical strength for dental application such as building models, implant templates, surgical guides, night guard/occlusal splints, dentures, clear aligners, and temporary restorations.
C08F 2/50 - Polymerisation initiated by wave energy or particle radiation by ultraviolet or visible light with sensitising agents
B29C 64/129 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask
A computer-implemented method and system for CT reconstruction can include receiving a plurality of detected radiographs from a CT scanner during CT scanning and beginning reconstruction of one or more of the detected radiographs before all of the detected radiographs are acquired.
A computer-implemented method and system for CT reconstruction can include receiving a plurality of detected radiographs from a CT scanner during CT scanning and beginning reconstruction of one or more of the detected radiographs before all of the detected radiographs are acquired.
Methods and apparatus are provided for pressure casting ceramic bodies. Methods and apparatus are provided for rapid ejection of cast ceramic bodies from a mold. A mold is described that has an impermeable cavity surface to provide dry release of the cast body. Ceramic bodies produced by the methods and apparatus have smooth, non-tacky surfaces after ejection from the mold.
B29C 64/00 - Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
B28B 1/26 - Producing shaped articles from the material by slip-casting, i.e. by casting a suspension or dispersion of the material in a liquid-absorbent or porous mould, the liquid being allowed to soak into or pass through the walls of the mouldMoulds therefor
90.
Ceramic bodies having antimicrobial properties and methods of making the same
A method for making a ceramic body comprised of a ceramic material having an inhibitory effect on bacterial growth is provided. A dental prosthesis may be made of a ceramic material that comprises a molybdenum-containing component on a portion of the prosthesis that contacts the gingival surface of a patient. In one method, a porous zirconia ceramic structure is shaped in the form of a dental prosthesis, and then infiltrated with a molybdenum-containing composition, before sintering to densify the ceramic structure.
A61L 27/42 - Composite materials, i.e. layered or containing one material dispersed in a matrix of the same or different material having an inorganic matrix
A61K 6/58 - Preparations specially adapted for dental root treatment specially adapted for dental implants
A61K 6/818 - Preparations for artificial teeth, for filling teeth or for capping teeth comprising ceramics comprising zirconium oxide
A61K 6/824 - Preparations for artificial teeth, for filling teeth or for capping teeth comprising ceramics comprising transition metal oxides
A61K 6/802 - Preparations for artificial teeth, for filling teeth or for capping teeth comprising ceramics
C09D 183/14 - Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon onlyCoating compositions based on derivatives of such polymers in which at least two but not all the silicon atoms are connected by linkages other than oxygen atoms
A computer-implemented method of recognizing dental information associated with a dental model of dentition includes training a deep neural network to map a plurality of training dental models representing at least a portion of each one of a plurality of patients' dentitions to a probability vector including probability of the at least a portion of the dentition belonging to each one of a set of multiple categories. The category of the at least a portion of the dentition represented by the training dental model corresponds to the highest probability in the probability vector. The method includes receiving a dental model representing at least a portion of a patient's dentition and recognizing dental information associated with the dental model by applying the trained deep neural network to determine a category of the at least a portion of the patient's dentition represented by the received dental model.
A computer-implemented method and system of digitally segmenting teeth in a digital model comprises generating a panoramic image from a 3D digital model of a patient's dentition, labeling, using a first trained neural network, the panoramic image to provide a labeled panoramic image, mapping the labeled panoramic image to corresponding coarse digital surface triangle labels in the 3D digital model to provide a labeled 3D digital model, and segmenting the labeled 3D digital model to provide a segmented 3D digital model. A computer-implemented method and system of generating a panoramic image comprises determining, using a trained neural network, digital tooth bounding region(s) corresponding to digital teeth from a 2D depth map of a patient's dentition, connecting digital tooth bounding region(s) by a spline, determining sampled digital surface points from the sampled spline points; and determining associated digital surface points corresponding to each sampled digital surface point.
A dental appliance to reduce or eliminate snoring is disclosed. The dental appliance includes an upper tray, a lower tray, one or more tray-removal features, and a connecting arm. The upper tray includes a first coupling post located on a buccal surface of the upper tray. The lower tray includes a second coupling post located on a buccal surface of the lower tray. Each of the coupling posts includes a flange configured to pivotably and slidably secure the connecting arm and to release the connecting arm when the upper tray is rotated to a predetermined angle with respect to a closed position of the upper and lower trays. The one or more tray-removal features are disposed on the buccal or lingual surface of each of the upper and lower trays.
A method is provided for shaping a custom dental restoration from a preform, wherein the preform comprises a preform body and a preform stem. A method is further disclosed for generating one or more nesting positions for the restoration design within the geometry of the preform body relative to the position of the preform stem. A method is further disclosed for generating machining instructions based on the selected nesting position to optimize machining for chair-side applications.
A computer-implemented method and system compresses CT reconstruction images and can include: receiving a volumetric density file including one or more voxels; replacing one or more voxel density values below an air density value with the air density value; replacing one or more voxel density values above a material density value with the material density value; determining one or more voxels of interest; replacing one or more non-interesting voxel density values below a material surface density with the air density value; replacing one or more non-interesting voxel density values above the material surface density with the material density value; quantizing all voxels to provide a reduced volume image; and compressing the reduced volume image to provide a compressed volume image.
A system to CT reconstruct images can include: a processor; a computer-readable storage medium including instructions executable by the processor to perform steps including: receiving one or more CT projection images; performing smooth filtering on the one or more CT projection images to generate one or more smooth boundary filtered images; and backprojecting the one or more smooth boundary filtered images, wherein each CT projection image comprises one or more pixel rows, each pixel row comprising a first detector pixel and a last detector pixel.
G06V 10/22 - Image preprocessing by selection of a specific region containing or referencing a patternLocating or processing of specific regions to guide the detection or recognition
A computer-implemented method and system compresses CT reconstruction images and can include: receiving a volumetric density file including one or more voxels; replacing one or more voxel density values below an air density value with the air density value; replacing one or more voxel density values above a material density value with the material density value; determining one or more voxels of interest; replacing one or more non-interesting voxel density values below a material surface density with the air density value; replacing one or more non-interesting voxel density values above the material surface density with the material density value; quantizing all voxels to provide a reduced volume image; and compressing the reduced volume image to provide a compressed volume image.
A computer-implemented method and system of CT reconstruction can include receiving one or more CT projection images; performing smooth filtering on the one or more CT projection images to generate one or more smooth boundary filtered images; and back-projecting the one or more smooth boundary filtered images.
Disclosed are example embodiments of methods and systems for automatically coloring a dental prosthesis. One of the systems includes: a memory configured to store a computer-aided manufacturing (CAM) file of the dental prosthesis; a holding apparatus for securing the dental prosthesis; one or more outlets for dispensing coloring fluid; an coloring fluid controller configured to control the one or more outlets to dispense coloring fluid at a preset size and frequency based at least on the CAM file; and a motion controller configured to move the holding apparatus or the one or more outlets based at least on the CAM file.
A method for enhancing optical properties of sintered, zirconia ceramic bodies and zirconia ceramic dental restorations is provided. The porous or pre-sintered stage of a ceramic body is treated with two different yttrium-containing compositions and sintered, resulting in sintered ceramic bodies having enhanced optical properties. The enhanced optical properties may be substantially permanent, remaining for the useful life of the sintered ceramic body.
C04B 41/89 - Coating or impregnating for obtaining at least two superposed coatings having different compositions
A61K 6/818 - Preparations for artificial teeth, for filling teeth or for capping teeth comprising ceramics comprising zirconium oxide
A61K 6/822 - Preparations for artificial teeth, for filling teeth or for capping teeth comprising ceramics comprising rare earth metal oxides
B05D 1/02 - Processes for applying liquids or other fluent materials performed by spraying
B05D 3/02 - Pretreatment of surfaces to which liquids or other fluent materials are to be appliedAfter-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
C04B 111/80 - Optical properties, e.g. transparency
C04B 111/00 - Function, property or use of the mortars, concrete or artificial stone
