Methods and systems for visualizing teeth and treatment planning
Granted: August 20, 2024
Patent Number:
12067210
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…
Method for appliances with bite adjustment structures
Granted: August 20, 2024
Patent Number:
12064316
A series of appliances including a first shell and a second shell can be designed to incrementally implement a treatment plan. The first and second shells can have cavities designed to receive teeth of a jaw. A first number of bite adjustment structures can be formed of a same material as the first shell, extending therefrom and designed to interface with teeth of a second jaw. The first number of bite adjustment structures can have a first shape and location specific to a first stage of…
Dental appliance compliance monitoring
Granted: August 20, 2024
Patent Number:
12064314
The present disclosure describes devices, systems, and methods for monitoring use of an oral appliance in an oral cavity using extra-oral sensor(s). One method includes sensing one or more physical properties of an oral appliance using an extra-oral sensor, providing a compliance signal from the extra-oral sensor, identifying one or more patient compliance factors based on the compliance signal, the one or more patient compliance factors providing a basis to identify an extent of…
Filling undercut areas of teeth relative to axes of appliance placement
Granted: August 20, 2024
Patent Number:
12064312
The present disclosure provides computing device implemented methods, computing device readable medium, and molds for filling undercut areas of teeth relative to an axis of placement. Filling undercut areas of teeth relative to an axis of placement can include calculating an undercut area of a tooth relative to an axis of placement of part of a dental appliance over a number of teeth and a height of contour that is defined based on the axis of placement. Filling undercut areas of teeth…
Visual presentation of gingival line generated based on 3D tooth model
Granted: August 20, 2024
Patent Number:
12064311
Systems and methods of simulating dental treatments are disclosed. A method may include capturing a first 2D image of a patient's face, including the patient's teeth, building a parametric 3D model of the patient's teeth and gingiva based on the first 2D image, developing a simulated outcome of a dental treatment of the patient's teeth by rendering the parametric 3D model with the patient's teeth in one or more positions and/or orientations corresponding to the treatment goals of the…
Systems, methods, and apparatus for correcting malocclusions of teeth
Granted: August 20, 2024
Patent Number:
12064310
Methods and systems are provided for manufacturing an appliance for correcting malocclusions of a patient's teeth. The method may include measuring the positions of a patient's teeth and receiving tooth movement constraints. The method may also include generating an initial treatment plan based on the measured tooth positions and the tooth movement constraints and measuring the malocclusions of the patient's teeth for one or more types of dental malocclusions. The method may also include…
Automated, generation of dental features in digital models
Granted: August 13, 2024
Patent Number:
12062180
In embodiments, a processing device generates a three-dimensional model of a dental site from scan data, the three-dimensional model comprising a representation of a tooth, wherein a portion of the three-dimensional model comprises an interfering surface that obscures a portion of the tooth. The processing device receives or generates an image of the tooth, wherein the image depicts the interfering surface. The processing device processes the image to generate a modified image, wherein…
Orthodontic repositioning appliances having improved geometry, methods and systems
Granted: August 13, 2024
Patent Number:
12059321
The present invention provides methods and systems including orthodontic tooth positioning appliances. An exemplary appliance can include teeth receiving cavities shaped such that, when worn by a patient, repositioning the patient's teeth from a first arrangement toward a subsequent or target arrangement. Appliances can include a cavity having one or more shaped features or protrusions shaped and/or positioned so as to apply a desired force to a patient's tooth received in the cavity and…
Reinforced aligner hooks
Granted: August 6, 2024
Patent Number:
12053344
Orthodontic positioning devices, and related methods and systems, are disclosed for use with one or more orthodontic elastic members. The disclosed devices are configured to couple with an orthodontic elastic member so as to react a force from the elastic member into the appliance to, for example, generate traction forces on the patient's teeth to produce a desired occlusion. A positioning device includes a patient removable tooth positioning appliance having teeth receiving cavities…
Recoating system including multiple blades
Granted: August 6, 2024
Patent Number:
12053925
A system includes a carrier film including an outer surface and an inner surface. The inner surface is configured to contact rollers. The system further includes a first blade configured to form a layer of resin on the outer surface of the carrier film. The system further includes a second blade configured to prevent printed features from contacting the first blade. The system further includes a build platform. A portion of the layer of resin is to be added to an object being formed on…
Photopolymerizable block polymers and methods of producing and using the same
Granted: July 30, 2024
Patent Number:
12049528
Provided herein are curable compositions for use in a high temperature lithography-based photopolymerization process, and telechelic block polymers and methods of using such polymers in curable compositions to produce medical devices such as orthodontic appliances comprising the polymeric compositions comprising the telechelic block polymers.
Systems for treatment planning with overcorrection
Granted: July 30, 2024
Patent Number:
12048606
Orthodontic systems and related methods are disclosed for designing and providing improved or more effective tooth moving systems for eliciting a desired tooth movement and/or repositioning teeth into a desired arrangement. Methods and orthodontic systems include the generation of an overcorrection in the tooth-receiving cavities of an appliance worn in the dentition. The overcorrection may provide an improved and more accurately applied force or moment applied to a tooth. The…
Tracking orthodontic treatment using teeth images
Granted: July 30, 2024
Patent Number:
12048605
Systems and methods for monitoring a subject's teeth during orthodontic treatment. An input 2D image of the subject's current teeth including a wide angle occlusal view of the subject's upper and/or lower jaw at a current treatment stage can be received. Virtual camera parameters corresponding to the input 2D image can be determined. A rendered 2D image of the subject's teeth can be generated from a 3D model of the subject's upper and/or lower jaw at a planned treatment stage with the…
Automatic application of doctor's preferences workflow using statistical preference analysis
Granted: July 30, 2024
Patent Number:
12048604
Methods and apparatuses for automatic treatment planning, including recommendation systems, quality assurance, error prevention, text mining, text matching, and treatment planning optimization.
Systems for using rescan data for dental procedures
Granted: July 30, 2024
Patent Number:
12048512
Systems and methods are provided for using rescan data in dental procedures, such as the preparation of orthodontics and prosthodontics. A method may include receiving scan data of a patient's teeth, demarcating useful data from data that should be replaced, receiving rescan data, and replacing at least a portion of the scan data that should be replaced with at least a portion of data from the rescan data.
Curable composition for use in a high temperature lithography-based photopolymerization process and method of producing crosslinked polymers therefrom
Granted: July 23, 2024
Patent Number:
12042353
Provided herein are curable compositions for use in a high temperature lithography-based photopolymerization process, a method of producing crosslinked polymers using said curable compositions, crosslinked polymers thus produced, and orthodontic appliances comprising the crosslinked polymers.
Facial model for generation of post-treatment images of teeth and soft facial tissues
Granted: July 23, 2024
Patent Number:
12042350
A processing device receives a pre-treatment model of upper and lower dental arches of a person, the pre-treatment model comprising first positions of teeth, and further receives a post-treatment model of the upper and lower dental arches, the post-treatment model comprising second positions of the teeth. The processing device determines a first mapping between first positions of first landmarks in the pre-treatment model and second positions of the first landmarks in the post-treatment…
Reflection suppression using fluorescence
Granted: July 23, 2024
Patent Number:
12042124
An apparatus for intraoral scanning includes an elongate handheld wand comprising a probe at a distal end of the handheld wand, one or more light projectors coupled to the handheld wand, and one or more cameras coupled to the handheld wand. Each camera comprises a camera sensor and objective optics comprising one or more lenses. Each camera is configured to focus at an object focal plane that is located between 1 mm and 30 mm from the lens that is farthest from the camera sensor. The…
System and method for digital tooth imaging
Granted: July 16, 2024
Patent Number:
12036084
Method and system for managing multiple impressions of a patient's jaw for an orthodontic treatment are provided. The method includes scanning at least a first impression and a second impression of the same jaw for the orthodontic treatment; determining if the first jaw impression and the second jaw impression have distortion in different areas; selecting the first jaw impression or the second jaw impression as a base impression; and replacing distorted tooth data from the base…
Orthodontic tooth movement device, systems and methods
Granted: July 16, 2024
Patent Number:
12036086
The present invention provides orthodontic appliances and systems, and related methods, for applying a force to a target tooth as an appliance is worn by the patient. One positioning appliance includes a tooth positioning appliance having teeth receiving cavities shaped to apply a positioning force to the patient's teeth. The appliance includes a spring-loaded tooth movement device disposed in the appliance so as to engage an attachment mounted on a surface of a patient's tooth and apply…
