Align Technology, Inc.

Rene M Sterental

Eric E Kuo

Artem Borovinskih

Jason Ramos

Ian Kitching

Maia Singer

Samuel Blanco

Dmitriy Konstantinovich Ten

Avi Kopelman

Roman A Roschin

Mitra Derakhshan

Evgenii Vladimirovich Karnygin

Pavel Pokotilov

Dmitry Yurievich Chekh

David Patrick Lopes

Jon F Moss

Lou Shuman

Shiva Prasad Sambu

Mikhail Minchenkov

Igor Kvasov

Anton Lapshin

Artem Kuanbekov

Anton Terekhov

Evgeniy Morozov

Valery Prokoshev

Ivan Pavlov

Yury A Brailov

Boris Aleksandrovich Vysokanov

Vladislav Andreevich Miryaha

Adi Levin

Vadim Matov

Fuming Wu

Anton Spiridonov

Anatoliy Boltunov

Leonid Vyacheslavovich Grechishnikov

Mikhail Dyachenko

Pavel Agapov

Olga Likhacheva

Ofer Saphier

Michael Sabina

Sergei Ozerov

Svetlana Makarenkova

Boris Likhtman

Eric P Meyer

Pavel Sokolov

Rahul Khardekar

Sergey Kurchatov

Mauricio De Alencar Casa

Alexander Kulinich

Mikhail Nyukhtikov

Partha Dey

Pavel Razumovskiy

Anton Gavrilov

Boris Vasilevskiy

Giovanny Garro Acevedo

Giovanny Garro

Aleksandr Zhulin

Michael Flanagan

Olga Matusevich

Vladimir Grenaderov

Dmitry Mednikov

Igor Akopov

Irina A Ivanova

Andrey Maximov

Alexander Belous

Maria Shirshova

Irina Igorevna Ivanova

Behnam J Foroodian

Nikolay Yakovlev

Alexander Pimenov

Alexander Strizhev

Mauricio De Alancar Casa

Irina Ivanova

Evgeniy Malashkin

Anna Sivakova

Konstantin Tenzin

Systems and methods for moving teeth of a patient from a first tooth arrangement toward a second tooth arrangement are provided, including: a first dental appliance corresponding to a first stage of an orthodontic treatment plan and corresponding to the first tooth arrangement; a second dental appliance corresponding to a second stage of the orthodontic treatment plan and corresponding to the second tooth arrangement; and a plurality of intermediate dental appliances corresponding to a plurality of intermediate stages between the first stage and the second stage of the orthodontic treatment plan. The intermediate dental appliances include a first intermediate dental appliance having first tooth receiving cavities shaped for moving the patient's teeth as prescribed for the respective intermediate stage by the orthodontic treatment plan, and a duplicate intermediate dental appliance having duplicate tooth receiving cavities with the same geometries as the first tooth receiving cavities.

Systems and methods for orthodontic treatment with duplicate appliances

Dental appliance systems with appliances having eruption tabs. The dental appliance systems may include at least a first shell and a second shell each shaped to receive teeth of respective first and second jaws of a patient. The first and second shells may include respective first and second eruption tabs that extend from respective first and second posterior tooth-receiving cavities of the shells. At least one of the first and second tabs may be configured to exert a force to manage eruption of the erupting posterior tooth. The first and second tabs may include contoured exterior shapes that provide mating engagement with each other so as to support the force exerted on the erupting posterior tooth.

Dental appliance systems with eruption tabs

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 systems for IPR planning. One method includes identifying an overlap between a first tooth and a second tooth in a patient's dentition at a target position of a treatment plan; identifying first and second ridge endpoint reference lines on each of the first tooth and the second tooth; calculating a distance difference between the first and second ridge endpoint reference lines; determining that the distance difference is outside a threshold difference; revising the treatment plan by adding one or more stages to the treatment plan where the distance difference between the first and second ridge endpoint reference lines is within the threshold difference; and prescribing IPR on one or both of the first and second teeth at the one or more additional stages of the treatment plan.

Methods and systems for interproximal reduction planning

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 providing orthodontic treatment may include identifying an orthodontic treatment plan for a patient's teeth, identifying a first batch of orthodontic appliances to implement a first phase of the orthodontic treatment plan, obtaining a digital representation of the patient's teeth during the first phase of the orthodontic treatment plan, determining, based on the digital representation, whether or not the patient's teeth accord with one or more customized treatment guidelines for the patient's teeth; identifying, based on a determination whether or not the patient's teeth accords with the one or more customized treatment guidelines, one or more tasks for administering a second phase of the treatment plan to the patient's teeth, and providing a set of orthodontic appliances to a dental practitioner.

Systems and methods for providing orthodontic treatment

A method of planning an orthodontic treatment for a patient may include receiving a digital representation of the patient's dentition in an initial arrangement, determining a first geometry for an upper shell of an orthodontic appliance. The first geometry may include a first plurality of tooth-receiving cavities shaped to receive an upper jaw of the patient's dentition and an upper cutout disposed along an upper gingival edge of the upper shell. The method may also include determining a location of an upper elastic band receiving member. The location of the upper elastic band receiving member may correspond to a position of the upper cutout. The location of the upper elastic band receiving member may be determined so as to generate a tooth repositioning force to facilitate repositioning of the patient's dentition when an elastic band is secured to the upper elastic band receiving member.

Devices and methods for dental appliances with cutouts

Apparatuses and methods for improving a patient's buccal corridor, including developing treatment plans and/or appliances to improve and enhance buccal corridor. Also described herein are methods of treating a patient's teeth to enhance the patient's buccal corridor.

Buccal corridor assessment and computation

Systems and methods for orthodontic treatment progress tracking. Information based on an orthodontic treatment plan prescribed for a patient undergoing orthodontic treatment may be received. The orthodontic treatment plan specifies planned tooth movements according to a series of treatment stages. An orthodontic progress tracking schedule for the patient based on one or more particular tooth movements of the planned tooth movements may be generated. The orthodontic progress tracking schedule may prescribe a timing schedule for acquiring images of the patient's teeth to track progress of the orthodontic treatment. Images of teeth arrangements of the patient according to the orthodontic progress tracking schedule may be received. Results based on the tracked orthodontic treatment progress may be provided, for example, on a display.

Systems and methods for orthodontic treatment progress tracking

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 generating a plurality of treatment plans from the initial treatment plan based on the measured malocclusion and generating a model of an appliance for each stage of the treatment plan. The method may also include generating instructions for fabricating the appliance for each stage of the treatment plan based on the model of the appliance for each stage of the treatment plan.

Systems, methods, and apparatus for correcting malocclusions of teeth

Methods and media for analyzing a patient's dental arches in order to generate a treatment plan for the dentition when the patient is missing one or more teeth. The methods and media can include indentifying one or more missing teeth, and estimating one or more dimensions of the one or more missing teeth.

Dental analysis with missing teeth prediction

Methods and systems for determining a dental treatment difficulty in digital treatment planning. The methods may include calculating tooth position changes from an initial dental model to a target dental model in a mouth quadrant of a patient's dentition. The changes in position may be determined by projecting distances between initial positions and subsequent positions of teeth onto an arch line of the initial dental model. A treatment difficulty of anterior-posterior (A-P) correction may be determined for the mouth quadrant based on an average change in position, wherein a greater average change in position is associated with a higher treatment difficulty of A-P correction. The digital treatment plan may be adjusted so that a provider skill level meets or exceeds the treatment difficulty of A-P correction.

Methods and systems for determining a dental treatment difficulty in digital treatment planning

A processing device receives image data of an actual condition of a patient's dental arch at a stage of an orthodontic treatment plan. The processing device compares the image data of the actual condition of the patient's dental arch to a planned condition of the patient's dental arch for the stage of the orthodontic treatment plan. The processing device determines an updated orthodontic treatment plan based on one or more differences between the actual condition of the patient's dental arch and the planned condition of the patient's dental arch determined from the comparing. The processing device generates one or more three-dimensional (D) models for one or more new orthodontic aligners in accordance with the updated orthodontic treatment plan.

Updating an orthodontic treatment plan during treatment

Methods and systems including: receiving one or more 2D images of a patient's face including a depiction of the patient's teeth in an initial arrangement; extracting teeth contours of the patient's teeth from within the mouth region of the one or more received 2D images of the patient's face; generating, using a neural network, a 2D rendering depicting a post-treatment arrangement of the patient's teeth based on the one or more received 2D images; generating a realistic composite 2D image depicting the patient's face with the 2D rendering depicting the post-treatment arrangement of the patient's teeth; and sending the realistic composite 2D image for display on a user interface of an output device.

Generating a virtual patient depiction of an orthodontic treatment

The present invention relates to systems and methods of developing and tracking delivery and patient progression through an orthodontic treatment plan. One method includes identifying deviations from an orthodontic treatment plan, including receiving a digital representation of an actual arrangement of a patient's teeth after an orthodontic treatment plan has begun for the patient and prior to completion of the orthodontic treatment plan. The method further includes comparing the actual arrangement to a pre-determined planned arrangement to determine if the actual arrangement substantially deviates from the planned arrangement, the comparing comprising matching teeth from a previously segmented model to a surface of an unsegmented representation of the actual arrangement; and calculating one or more positional differences between the actual and planned arrangements of at least some of the corresponding teeth.

Treatment progress tracking and recalibration

Growing community of inventors

Palo Alto, CA, United States of America

Rene M Sterental