Method for deriving three-dimensional aesthetic dental design model from augmented reality application

• Main Author: LANCELLE MARCEL
• Format: Patent
• Language: Chinese; English
• Published: 25.10.2022
• Subjects: APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE; CALCULATING; COMPUTING; COUNTING; DENTISTRY; HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATIONTECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING ORPROCESSING OF MEDICAL OR HEALTHCARE DATA; HUMAN NECESSITIES; HYGIENE; IMAGE DATA PROCESSING OR GENERATION, IN GENERAL; INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTEDFOR SPECIFIC APPLICATION FIELDS; MEDICAL OR VETERINARY SCIENCE; PHYSICS

A method for deriving a three-dimensional dental design model from an augmented reality application based on a three-dimensional dental library model comprises placing a rendered image of the dental library model on a photo and providing a tool to modify and/or move the dental library model on a display to obtain a desired dental design model; a three-dimensional scanning model of the dentition current situation of the patient is provided; aligning the scanning model with the current dentition situation of the patient in the picture to obtain the pose of the scanning model; calculating at least one transformation based on the prepared pose and scaling and the pose of the scan model to substitute the desired dental design model and scan model into a common coordinate system; the positioned dental design model is adapted to the scanning model by minimizing a measurement of shape differences between the positioned dental design model and the scanning model using non-rigid deformation to obtain a modified dental