Patent · US Active

Method for recording individual three-dimensional optical images to form a global image of a tooth situation

US9978172B2 · kind B2 · utility

3Cited by

5References

22Claims

0Family size

Assignee

Dentsply Sirona Inc. · US

Inventors

Anders Adamson · Darmstadt, DE
Burkhard Lehner · Radolfzell, DE
Joost Sattler · Bensheim, DE
Tom Bobach · Bensheim, DE
Frank Thiel · Oberramstadt, DE

Key dates

Filing date	Aug 14, 2013
Grant date	May 22, 2018
Priority date	—
Expiry date	Aug 14, 2033

Classification

Technology area (CPC G)Physics
CPC primaryG06T2219/2021
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

The invention relates to a method for recording individual three-dimensional optical images (1) to form a global image (50) of a tooth situation comprising an upper jaw (2) and a lower jaw (3). A first 3D model (6) of a first subsection of the upper jaw and a second 3D model (8) of a second subsection of the lower jaw are produced from the individual images. Subsequently, a geometric positional relationship between the first 3D model (6) and the second 3D model (8) is determined, said positional relationship being determined by using a lateral image (20, 21, 22) and/or using a contact pattern (31, 32). Said lateral image (20, 21, 22) comprises an image area which comprises at least part of the first subsection of the upper jaw (2) and at least part of the second subsection of the lower jaw (3). Said contact pattern comprises several contact areas (31, 32) between the upper jaw and the lower jaw. Said contact pattern (30, 31, 32) is measured by means of an occlusion paper (29).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.