Align Technology, Inc.

Partha Dey

Avi Kopelman

Sergei Ozerov

Adi Levin

Ofer Saphier

Michael Sabina

Roman A Roschin

Leonid Vyacheslavovich Grechishnikov

Mikhail Dyachenko

Pavel Razumovskiy

Anton Gavrilov

Rene M Sterental

Eric P Meyer

Edi Fridman

René M Sterental

Sergey Gagarin

Elad Zeiri

Amir Ashkenazi

Ron Ganot

Sean M Nolen

Sergey Valiev

Ilya Fomin

Ran Mizrahi

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

Processing logic makes a comparison between first image data and second image data of a dental arch and determines a plurality of spatial differences between a first representation of the dental arch in the first image data and a second representation of the dental arch in the second image data. The processing logic determines that a first spatial difference is attributable to scanner inaccuracy and that a second spatial difference is attributable to a clinical change to the dental arch. The processing logic generates a third representation of the dental arch that is a modified version of the second representation, wherein the first spatial difference is removed in the third representation, and wherein the third representation comprises a visual enhancement that accentuates the second spatial difference.

Analysis and visualization of a dental arch under a limited accuracy system

A system comprises a scanner, an augmented reality (AR) display and a computing device. The scanner generates intraoral images of a dental arch and the AR display generates additional image data representative of a view from a wearer of the AR display. The computing device receives the intraoral images from the intraoral scanner, generates a virtual three-dimensional model of at least a portion of the dental arch from the intraoral images, receives the additional image data from the AR display, determines, from the additional image data, a region of the view that is outside of the dental arch, generates a visual overlay comprising the virtual three-dimensional model, and sends the visual overlay to the AR display. The AR display displays the visual overlay such that the virtual three-dimensional model is shown in the region of the view that is outside of the dental arch.

Augmented reality enhancements for intraoral scanning

Longitudinal analysis and visualization under limited accuracy system

Growing community of inventors

San Jose, CA, United States of America

Partha Dey