US 11,653,875 B2
Method for determining and visualizing tooth positions under the action of biting forces
Nils Hanssen, Bonn (DE)
Assigned to SICAT GMBH & CO. KG, Bonn (DE)
Appl. No. 16/756,845
Filed by SICAT GMBH & CO. KG, Bonn (DE)
PCT Filed Oct. 16, 2018, PCT No. PCT/EP2018/078231
§ 371(c)(1), (2) Date Apr. 17, 2020,
PCT Pub. No. WO2019/076888, PCT Pub. Date Apr. 25, 2019.
Claims priority of application No. 10 2017 124 580.4 (DE), filed on Oct. 20, 2017.
Prior Publication US 2020/0237289 A1, Jul. 30, 2020
Int. Cl. A61B 5/00 (2006.01); G16H 50/50 (2018.01); A61B 5/22 (2006.01); A61C 9/00 (2006.01); A61C 13/00 (2006.01); A61C 19/05 (2006.01)
CPC A61B 5/4547 (2013.01) [A61B 5/228 (2013.01); A61C 9/0053 (2013.01); A61C 13/0004 (2013.01); A61C 19/05 (2013.01); G16H 50/50 (2018.01)] 19 Claims
OG exemplary drawing
 
1. A method for representing a tooth position under an action of biting forces, the method comprising:
creating first surface data of at least one portion of a maxilla tooth row and second surface data of at least one opposing portion of a mandible tooth row;
producing a digital surface model from the first surface data and the second surface data;
creating a data record comprising outer surface data of teeth lying in the portions of the maxilla tooth row and the mandible tooth row in a centric occlusion under the action of biting forces of a patient;
defining registration regions in the maxilla and in the mandible in the outer surface data, the registration regions not being exposed to an action of any force in the centric occlusion;
registering the first surface data and the second surface data on the outer surface data based on the registration regions;
ascertaining movements of individual teeth outside of the registration regions from the outer surface data;
transforming the movements ascertained into the first surface data and the second surface data; and
creating a modified digital surface model which takes the movements into account.