公开(公告)号：US20230351712A1

公开(公告)日：2023-11-02

申请号：US17913860

申请日：2021-03-25

Applicant: 3SHAPE A/S

Inventor： Adam Carsten STOOT ,  Mathias BRÄNNSTRÖM

IPC: G06T19/20 ,  A61C13/34 ,  G06T17/20 ,  G06T5/30

CPC classification number: G06T19/20 ,  A61C13/34 ,  G06T17/20 ,  G06T5/30 ,  G06T2219/2021

Abstract: Disclosed is a computer implemented method for generating a dental appliance including obtaining a first 3D digital surface representation of one or more teeth of a patient; creating a number of points in 3D space around the 3D digital surface representation, calculating the shortest distance from each of the points to the 3D digital surface representation; generating a modified 3D digital surface representation by dilating the surface of the object a defined value by using the calculated distances; and generating a resulting 3D digital surface representation of the dental appliance by erosion of the modified 3D digital surface representation inwards.