US 11,751,974 B2
Automatic ectopic teeth detection on scan
Roman A. Roschin, Moscow (RU); Evgenii Vladimirovich Karnygin, Moscow (RU); Sergey Grebenkin, Moscow (RU); Alexey Lazarev, Moscow (RU); Dmitry Guskov, Moscow (RU); Ivan Slepynin, Moscow (RU); Alexey Vladykin, Balashikha (RU); Alexander Vovchenko, Moscow (RU); and Alexander Beliaev, Moscow (RU)
Assigned to Align Technology, Inc., San Jose, CA (US)
Filed by Align Technology, Inc., San Jose, CA (US)
Filed on Oct. 11, 2021, as Appl. No. 17/450,541.
Application 17/450,541 is a continuation of application No. 16/407,087, filed on May 8, 2019, granted, now 11,154,381.
Claims priority of provisional application 62/668,693, filed on May 8, 2018.
Prior Publication US 2022/0023004 A1, Jan. 27, 2022
Int. Cl. A61C 7/00 (2006.01); A61C 9/00 (2006.01); G06T 7/00 (2017.01)
CPC A61C 7/002 (2013.01) [A61C 9/0053 (2013.01); A61C 9/0046 (2013.01); G06T 7/0014 (2013.01)] 22 Claims
OG exemplary drawing
1. A method for numbering a patient's teeth to account for an abnormal tooth, comprising:
receiving, in a processor, a dental scan along a teeth curve of a patient's dental arch;
numbering, in the processor, each of the patient's teeth to a first numbering value, wherein the first numbering value corresponds to an expected tooth type;
detecting dimensions of each of the patient's teeth;
evaluating, in the processor, a width of a target tooth or widths of adjacent target teeth to determine a tooth type or teeth types;
determining a presence of a missing or ectopic tooth by determining that the first numbering value of the target tooth or adjacent target teeth does not match the determined tooth type or teeth types; and
re-numbering the patient's teeth to account for the presence of the missing or ectopic tooth.