Methods and apparatuses for forming a three-dimensional volumetric model of a subject's teeth

US10888400B2 · kind B2 · utility

Assignee

• Align Technology, Inc. · US

Inventors

• Gilad Elbaz · Santa Monica, US
• Erez Lampert · Rehovot, IL
• Yossef Atiya · Kfar Ruth, IL
• Avi Kopelman · Palo Alto, US
• Ofer Saphier · Rehovot, IL
• Maayan Moshe · Raanana, IL
• Shai Ayal · Shoham, IL
• Michael Sabina · Campbell, US
• Eric Kuo · San Francisco, US
• Assaf Weiss · Yavne, IL
• Doron Malka · Tel Aviv-Yafo, IL
• Eliahou Franklin Nizard · Jerusalem, IL
• Ido Tishel · Kfar Bilu, IL

Key dates

• Filing date: Mar 10, 2020
• Grant date: Jan 12, 2021
• Expiry date: Mar 10, 2040

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B5/1079
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

Methods and apparatuses for generating 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) including both surface features and internal features. These methods and apparatuses may be used for identifying and evaluating lesions, caries and cracks in the teeth. Any of these methods and apparatuses may use minimum scattering coefficients and/or segmentation to form a volumetric model of the teeth.