US 12,213,852 B2
Method and system for measuring periodontal pocket depth
Mike Van Der Poel, Rødovre (DK); Astrid Birch, Holte (DK); Michael Vinther, København S (DK); Sonal Sharad Patil, Gentofte (DK); and Steen Frost Tofthøj, Værløse (DK)
Assigned to 3SHAPE A/S, Kobenhavn K (DK)
Appl. No. 17/289,938
Filed by 3SHAPE A/S, Copenhagen K (DK)
PCT Filed Oct. 31, 2019, PCT No. PCT/EP2019/079859
§ 371(c)(1), (2) Date Apr. 29, 2021,
PCT Pub. No. WO2020/089406, PCT Pub. Date May 7, 2020.
Claims priority of application No. 2018 70715 (DK), filed on Nov. 1, 2018.
Prior Publication US 2022/0008180 A1, Jan. 13, 2022
Int. Cl. A61C 19/04 (2006.01); A61B 1/24 (2006.01); G06T 7/55 (2017.01); H04N 13/207 (2018.01)
CPC A61C 19/043 (2013.01) [A61B 1/24 (2013.01); G06T 7/55 (2017.01); G06T 2207/30036 (2013.01); H04N 13/207 (2018.05)] 22 Claims
OG exemplary drawing
 
1. A system for measuring a depth of a periodontal pocket, the system comprising:
a frame configured to be worn by a user;
at least one camera, attached to the frame, configured to capture at least one 2D image of an intraoral target area, the at least one 2D image comprising a representation of at least:
a part of the tooth,
a gingiva margin defined by a section of the gingiva adjacent to the at least a part of the tooth, and
a probe tip when the probe tip is inserted into a periodontal pocket; and
a processor configured to receive the captured at least one 2D image and determine, in relation to the gingiva margin, an insertion length of the probe tip in the periodontal pocket by applying an image processing technique on information obtained about the probe tip in the captured at least one 2D image, wherein the determined insertion length represents a depth of the periodontal pocket.