Dental arch width measurement tool
Granted: October 11, 2022
Patent Number:
11464604
Systems and methods for rapidly and reliably determining an arch with of a patient's dental arch. A patient's dentition may be scanned and/or segmented. Arch width may be determined between points of intersection on the occlusal surface and a long axis of each tooth between one or more of: canine, first bicuspid, first primary molar, second bicuspid, second primary molar, and permanent first molar. Arch widths of different modified versions of the patient's dentition may be dynamically…
Method and apparatus for excessive materials removal from intraoral scans
Granted: September 27, 2022
Patent Number:
11455727
A method includes determining the following for each point in a second intraoral scan based on a comparison of a first intraoral scan to the second intraoral scan: whether a surface normal at the point is co-directional with a viewing direction associated with the first intraoral scan, wherein points in the second intraoral scan that have a surface normal that is co-directional with the first viewing direction are back-face points; and whether the point is behind a corresponding point in…
Aligner manufacturing system
Granted: September 27, 2022
Patent Number:
11453156
A system includes a heating section configured to heat a sheet of plastic to generate a heated sheet of plastic. The system includes a plate configured to secure a mold associated with a dental arch of a patient. The plate includes a locking mechanism. The mold includes feature configured to interface with the locking mechanism. The system further includes a thermoforming chamber configured to thermoform the heated sheet of plastic to the mold that is secured to the plate via an…
Generation of synthetic post treatment images of teeth
Granted: September 27, 2022
Patent Number:
11452577
A method includes determining, from a first image of a mouth, a first region of the first image comprising a representation of teeth; generating one or more parametric functions associated with tooth color based on color data from the first region; receiving image data comprising new contours of the mouth, wherein one or more of the teeth have a different position in the image data than in the first image; determining a second region comprising the teeth in the image data; and generating…
Digital treatment planning by modeling inter-arch collisions
Granted: September 20, 2022
Patent Number:
11449191
Orthodontic devices such as aligners, palatal expanders, retainers, and dental implants can be used to adjust the position of teeth and to treat various dental irregularities. To help the clinician or doctor (i.e., orthodontist) design and plan the subject's treatment plan, a 3D digital model of the subject's teeth, dentition, and gingiva can be constructed from a 3D scan of the subject's mouth, teeth, dentition, and gingiva. The 3D model of the subject's teeth and dentition can be…
Intraoral scanner that compensates for non-fixed magnification
Granted: September 13, 2022
Patent Number:
11439483
A system comprises alight source to provide light, an optical system comprises focusing optics to focus the light onto a focal surface, a detector to measure returning light that is reflected off of a three dimensional object, a translation mechanism to displace the focal surface along an imaging axis defined by the optical path, and one or more processor. The one or more processor is to generate measurement data comprising coordinates of a plurality of surface points of the three…
Method and a system usable in creating a subsequent dental appliance
Granted: September 6, 2022
Patent Number:
11432907
A current digital dental model is received that includes a representation of the set of physical teeth for the patient with the current dental appliance attached to the physical teeth or oral cavity. The current digital dental model is a direct digital scan of the set of physical teeth and the current dental appliance. The physical teeth are at a position in treatment when all or a part of the current dental appliance is desired to be removed from one or more of the set of physical teeth…
Systems and methods for anonymizing patent images in relation to a clinical data file
Granted: September 6, 2022
Patent Number:
11436191
Personal data file embodiments and methods for creating the same are provided. In some embodiments, the methods include obtaining an original patient data file including patient medical information comprising one or more patient images; receiving first instructions to designate only a portion of the one or more patient images in the original patient data file as private; providing a privacy region over the at least a portion of the one or more patient images; creating one or more…
3D printed composites from a single resin by patterned light exposures
Granted: September 6, 2022
Patent Number:
11434316
Provided herein are processes for the generation of composite polymer materials utilizing a single resin. The processes utilize diffusion between a region undergoing a polymerization reaction preferentially polymerizing one monomer component and an unreactive region. Diffusion and subsequent/concurrent polymerization results in a higher concentration of the more reactive monomer component in the reacting region and a higher concentration of the less reactive monomer components in the…
Closed loop adaptive orthodontic treatment methods and apparatuses
Granted: September 6, 2022
Patent Number:
11432908
Method and Apparatuses for monitoring progress of an orthodontic treatment plan and automatically or semi-automatically modifying the orthodontic treatment plan. The orthodontic treatment plan may be monitored by sensors on one or more appliance in the treatment plan, and may be monitored if the sensed data deviates from the expected treatment plan.
Motion compensation in a three dimensional scan
Granted: May 3, 2022
Patent Number:
11321817
The present disclosure provides computing device implemented methods, computing device readable media, and systems for motion compensation in a three dimensional scan. Motion compensation can include receiving three-dimensional (3D) scans of a dentition, estimating a motion trajectory from one scan to another, and calculating a corrected scan by compensating for the motion trajectory. Estimating the motion trajectory can include one or more of: registering a scan to another scan and…
Hybrid 3D printing with photo-curable materials
Granted: May 3, 2022
Patent Number:
11318667
A method of three-dimensional (3D) printing includes heating a photo-curable material and extruding the photo-curable material from a nozzle to form a first layer of an object according to a digital file, wherein the first layer has a first shape specified by the digital file, and wherein the first shape has a first minimum line width based on a diameter of the nozzle. The method further includes directing a light beam onto the first layer according to the digital file or an additional…
Augmented reality enhancements for dental practitioners
Granted: May 3, 2022
Patent Number:
11317999
A processing device receives, from an image capture device associated with an augmented reality (AR) display, a plurality of images of a face of a patient. The processing device selects a subset of the plurality of images that meet one or more image selection criteria. The selection comprises determining, from the plurality of images, a first image that represents a first position extreme for the face; determining, from the plurality of images, a second image that represents a second…
Reduced registration bonding template
Granted: May 3, 2022
Patent Number:
11317990
A dental template for positioning an object on teeth of a patient and method for fabricating the same. The method includes creating a digital model of the patient's teeth, creating a simplified template model based on the digital model, and fabricating the dental template based on the simplified template model. The template model is simplified by removing certain features of the patient's tooth anatomy. The dental template can be located on a patient's teeth using four or fewer…
System and method for scanning an intraoral cavity
Granted: April 19, 2022
Patent Number:
11304785
According to the invention, a method and system are provided for scanning, and for facilitating scanning of, an intraoral cavity. The target parts of the intraoral cavity that it is desired to have scanned are identified, and the spatial s relationships between a scanning device and the target parts of the intraoral cavity suitable for enabling said target parts to be scanned by said scanning device, are also identified or otherwise determined. These relationships are then displayed, and…
Systems and methods for providing orthodontic aligners and other dental appliances
Granted: April 19, 2022
Patent Number:
11304779
A method for manufacturing an orthodontic aligner includes printing a mold associated with a dental arch of a patient based on a digital model of the mold, forming the orthodontic aligner over the mold, and trimming the orthodontic aligner. The method further includes assessing a quality of the orthodontic aligner by receiving a digital representation of the orthodontic aligner, the digital representation having been generated based on imaging of the orthodontic aligner, analyzing the…
Intraoral appliances with proximity and contact sensing
Granted: April 19, 2022
Patent Number:
11304778
Detection of placement of dental aligners in patient mouth on teeth for indication of wearing compliance. Described herein are apparatuses and methods for detecting wearing, including compliance. In some variations these apparatuses and methods may include a sensor configured to detect deflection of the one or more deflectable structures. In some variations, these apparatuses and methods may include a proximity sensor coupled to the appliance shell and configured to generate sensor data…
Variable direction tooth attachments
Granted: April 12, 2022
Patent Number:
11298211
Tooth attachments are provided comprising one or more convex surfaces for engagement by a surface of an orthodontic appliance. Polymeric shell appliances are provided in which the polymeric shell appliances are configured to provide one or more activation forces to facilitate tooth movement. The polymeric shell appliances may comprise one or more tooth receiving cavities. The polymeric shell appliances may further comprise an engagement portion with a surface configured to engage a…
Method and system for providing dynamic orthodontic assessment and treatment profiles
Granted: April 12, 2022
Patent Number:
11298209
Method and system including receiving one or more parameters associated with an orthodontic condition, receiving a treatment goal information associated with the orthodontic condition, and providing a predefined template associated with the received treatment goal information, wherein the predefined template includes at least one orthodontic condition related information, are provided.
Vision and geometric approaches to detect defects in dental appliances
Granted: April 5, 2022
Patent Number:
11295444
Multiple techniques for detecting defects in customized dental appliances are disclosed. In one technique, processing logic obtains one or more images of a customized dental appliance, obtains a digital model associated with the customized dental appliance, and performs segmentation on the one or more images to identify an area of the one or more images that comprises a representation of the customized dental appliance. Processing logic then registers the one or more images to the…
