US 12,279,924 B2
Shell-shaped tooth repositioner
Junsheng Li, Shanghai (CN); Ketuo Zhou, Shanghai (CN); and Lei Huang, Shanghai (CN)
Assigned to WUXI EA BIOTECHNOLOGY LIMITED, Wuxi (CN)
Appl. No. 17/766,756
Filed by WUXI EA BIOTECHNOLOGY LIMITED, Wuxi (CN)
PCT Filed Jul. 23, 2020, PCT No. PCT/CN2020/103759
§ 371(c)(1), (2) Date Apr. 6, 2022,
PCT Pub. No. WO2021/068597, PCT Pub. Date Apr. 15, 2021.
Claims priority of application No. 201921685369.5 (CN), filed on Oct. 10, 2019.
Prior Publication US 2024/0090976 A1, Mar. 21, 2024
Int. Cl. A61C 7/08 (2006.01)
CPC A61C 7/08 (2013.01) 20 Claims
OG exemplary drawing
 
1. A shell-shaped tooth repositioner comprising: N successive shell-shaped tooth repositioners corresponding to N successive steps, respectively, wherein each of the N shell-shaped tooth repositioners is for repositioning teeth from an initial tooth arrangement of a corresponding step to a target tooth arrangement of the corresponding step, a first bite plate is provided on a lingual side of a portion corresponding to a first tooth of each of the N shell-shaped tooth repositioners, for opening bite of anterior teeth, and wherein relative positions between the first bite plates on the N shell-shaped tooth repositioners and the first tooth are such that each of the N successive shell-shaped tooth repositioners is able to open bite of the anterior teeth to an extent which is substantially consistent with a same target extent, where N is a natural number greater than 3.