Align Technology, Inc.

Cadent, Inc.

Avi Kopelman

Eldad Taub

Michael Sabina

Ofer Saphier

Eric E Kuo

Maayan Moshe

Adi Levin

Gilad Elbaz

Shai Ayal

Erez Lampert

Yossef Atiya

Doron Malka

Ido Tishel

Assaf Weiss

Eliahou Franklin Nizard

Allen R Boronkay

Yaser Shanjani

Srinivas Kaza

Baruch Nissenbaum

Ryan Kimura

Nir Makmel

Sergei Ozerov

Ran Katz

Rene M Sterental

Noam Babayoff

Inna Karapetyan

Maria Anufrienko

Moti Ben-Dov

Maxim Volgin

Jun Sato

Roman A Roschin

Eric P Meyer

Jeeyoung Choi

Leonid Vyacheslavovich Grechishnikov

Edi Fridman

Elad Zeiri

Vadim Matov

Shiva Prasad Sambu

Ron Ganot

Amir Ashkenazi

Chunhua Li

Pavel Veryovkin

Dina Bova

Partha Dey

René M Sterental

Arthur Hsieh

Alexander Raskhodchikov

Igor Makiewsky

John Y Morton

Tal Verker

Shai Farkash

Mikhail Minchenkov

Pavel Agniashvili

Reza Shirazi Aghjari

Peter Webber

Jonathan Coslovsky

Jihua Cheng

Bastien Pesenti

Andrew Jang

Chad Clayton Brown

Rami Boltanski

Igor Kvasov

Leon Rasovsky

Jeremy Riley

Bob Grove

Eran Ishay

Roee Gorfinkel

Tal Levy

Mikhail Dyachenko

Avraham Zulti

Arkady Rudnitsky

Mauricio De Alencar Casa

Vladimir Shelbakh

Pavel Razumovskiy

Anton Gavrilov

Arad Zulti

Yoram Sharabi

Benny Gordon

Zelko Relic

Sergey Gagarin

Leonid Rasovsky

Ilya Fomin

Sean M Nolen

Sergey Valiev

Michael Christopher Cole

Matthew Durban

Blaine Carter

Ran Mizrahi

Yossi Atiya

Mauricio De Alancar Casa

Israel Shapira

Moti Ben Dov

Systems and methods for fabricating dental appliances are provided. In some embodiments, a method includes determining an appliance geometry for a dental appliance, where the appliance geometry includes a first region representing a first shell portion having a first set of cavities configured to receive one or more first teeth at a first side of a dental arch of a patient, a second region representing a second shell portion having a second set of cavities configured to receive one or more second teeth at a second side of the dental arch, and a third region representing an integrally formed arch expander configured to exert forces to increase a width of the dental arch. The method can also include generating instructions for fabricating the dental appliance having the appliance geometry via an additive manufacturing process, and using the instructions to instruct a fabrication system to fabricate the dental appliance.

Methods and systems for fabricating dental appliances with integrally formed arch expander

Dental appliances for treatment of a patient's dentition are provided. In some embodiments, a dental appliance includes a plurality of 3D printed polymer layers, where the plurality of 3D printed polymer layers includes a plurality of sequentially polymerized appliance cross-sections. The dental appliance can include an appliance shell formed from the plurality of sequentially polymerized appliance cross-sections. The appliance shell can include a plurality of tooth receiving cavities formed from the plurality of sequentially polymerized appliance cross-sections, the plurality of tooth receiving cavities arranged to receive a dentition and to exert one or more forces on the dentition, and a plurality of variable thickness regions formed from the plurality of sequentially polymerized appliance cross-sections. The plurality of variable thickness regions can include a corresponding plurality of different appliance thicknesses, and the plurality of variable thickness regions can be arranged to implement one or more treatment outcomes.

3D printed dental appliances with variable thickness regions

A system for intraoral scanning comprises a scanner to generate image data of a dental site and a computer readable medium. The computer readable medium includes instructs that, when executed by a processing device, cause the processing device receive a selection of library data for a reference object from library data for a plurality of reference objects in a library, receive the image data generated by the intraoral scanner, the image data comprising a representation of a dental site comprising the reference object, and align the library data for the reference object with the image data.

Digital scan body alignment using library data

Methods for fabricating orthodontic appliances are provided. In some embodiments, a method includes directly fabricating a shell using an additive manufacturing technique. The shell can have an interior surface and an exterior surface. The interior surface can include a plurality of teeth-receiving cavities shaped to reposition a patient's dentition from a first arrangement toward a second arrangement. The method may also include directly fabricating an elastic region joined to the shell using an additive manufacturing technique, concurrently with directly fabricating the shell.

Direct fabrication of orthodontic appliances with elastic regions

A method of intraoral scanning includes receiving a first one or more intraoral scans of a patient's oral cavity; automatically determining, based on processing of the first one or more intraoral scans, a first scanning role associated with the first one or more intraoral scans, wherein the first scanning role is a first one of an upper dental arch role, a lower dental arch role or a bite role; and determining a first three-dimensional surface associated with the first scanning role.

Smart scanning for intraoral scanners

Methods of forming dental appliances for expanding dental arches. Methods may include forming first and second virtual dental appliances, each having: virtual teeth receiving cavities shaped to conform to representations of the teeth at a point during respective first and second stages of orthodontic treatment, and virtual arch elements that extend between respective virtual teeth receiving cavities and having widths that are wider than an anatomical arch width. The methods may include fabricating first and second dental appliances using the first and second virtual dental appliances, respectively. At least one of the dental appliances may be fabricated to vary in thickness along the respective arch element.

Methods of forming arch expanding appliances

Methods and apparatuses for generating and displaying a model of a subject's teeth. Described herein are intraoral scanning methods and apparatuses for generating a three-dimensional model of a subject's intraoral region (e.g., teeth). These methods and apparatuses may be used for identifying and evaluating lesions, caries and cracks in the teeth.

Intraoral scanning apparatus

Described herein are intraoral scanning apparatuses comprising visible light and near-infrared (near-IR) light images from a patient's dentition. These apparatuses may display a 3D model of the patient's dental arch and a plurality of images of the patient's dental arch taken from different angles and positions relative to the patient's dental arch, and may both generate and display a two-dimensional (2D) image based on a relative angle and position between the indicator relative to the 3D model of the patient's dental arch.

Diagnostic intraoral scanning apparatuses

Orthodontic appliances are provided. In some embodiments, an orthodontic appliance includes a polymeric shell having a plurality of teeth-receiving cavities. The polymeric shell can include a discontinuity that is configured to deform when the orthodontic appliance is worn on a patient's teeth. The orthodontic appliance can also include an elastic member having a first portion directly coupled to a first location on the polymeric shell, and a second portion directly coupled to a second location on the polymeric shell. When the orthodontic appliance is worn on the patient's teeth, the elastic member can be configured to cause an interaction with the deformed discontinuity, the interaction eliciting a movement of one or more of the patient's teeth to change a size of an interproximal space between the patient's teeth.

Orthodontic appliances with discontinuities and elastics

A method of fabricating a dental appliance includes receiving a digital three-dimensional model of a mold for a dental arch of a patient, the digital three-dimensional model of the mold comprising one or more features associated with a cut line. The method further includes fabricating the mold by a rapid prototyping machine using the digital three-dimensional model, the mold having the one or more features. The method further includes thermoforming the dental appliance over the mold, wherein the one or more features cause the dental appliance to have one or more markings or elements for the cut line. The method further includes removing the dental appliance from the mold, and trimming the dental appliance along the cut line using the one or more markings or elements.

Manufacturing aligners having cut line markings

A processing device may execute instructions from a computer readable medium to perform operations comprising: making a comparison between first image data of at least a portion of a dental arch and second image data of at least the portion of the dental arch; determining a plurality of differences between a first representation of at least the portion of the dental arch in the first image data and a second representation of at least the portion of the dental arch in the second image data; determining that a first difference of the plurality of differences is attributable to tooth movement; determining that a second difference of the plurality of differences is attributable to tooth wear to one or more teeth on at least a portion of the dental arch; and generating a third representation of at least the portion of the dental arch that is a modified version of the second representation, wherein a visual indication of the tooth wear is provided in the third representation.

Analysis and visualization of dental arch over time

Systems and methods for improved visual prosthetic and orthodontic treatment planning are provided herein. In some aspects, a method for preparing a tooth of a patient is disclosed. The method may comprise building a model of a dentition of the patient including a model of the initial shape of tooth. The method may also include determining a final prepared shape of the tooth. In some aspects, the method may also include generating a treatment plan comprising a plurality of steps to modify the initial shape of the tooth to the final prepared shape of the tooth. The method may also include rendering visualizations for the plurality of steps of the treatment plan. The visualizations may depict the removal of tooth material to modify the initial shape of the tooth to the final prepared shape of the tooth.

Visual prosthetic and orthodontic treatment planning

A method for determining biting occlusion of a patient's teeth including generating a first 3D digital model of the patient's lower arch in non-occlusion. A second 3D digital model of the patient's upper arch in non-occlusion may be generated. A third 3D digital model of the patient's upper and lower arches in biting occlusion may be generated. The first and second 3D digital models May be aligned with corresponding teeth of the third 3D digital model to generate a fourth 3D model of the patient's teeth in biting occlusion.

Capturing true bite and occlusion contacts

Apparatuses, including sleeves, intraoral scanning systems to use these sleeves, and methods of using the sleeve.

Intraoral scanner sleeve

Growing community of inventors

Palo Alto, CA, United States of America

Avi Kopelman