US 11,937,988 B2
Denture tray for visual marking and manufacturing method thereof
Lifeng Wang, Beijing (CN); Chen Shen, Beijing (CN); Jianyong Ren, Beijing (CN); and Hongpeng Liu, Beijing (CN)
Assigned to BEIJING YAKEBOT TECHNOLOGY CO., LTD, Beijing (CN)
Appl. No. 17/256,133
Filed by BEIJING YAKEBOT TECHNOLOGY CO., LTD, Beijing (CN)
PCT Filed May 5, 2019, PCT No. PCT/CN2019/085477
§ 371(c)(1), (2) Date Dec. 24, 2020,
PCT Pub. No. WO2020/001159, PCT Pub. Date Jan. 2, 2020.
Claims priority of application No. 201810678304.1 (CN), filed on Jun. 27, 2018.
Prior Publication US 2021/0177557 A1, Jun. 17, 2021
Int. Cl. A61C 13/34 (2006.01); A61C 8/00 (2006.01); A61C 9/00 (2006.01); G06T 17/00 (2006.01)
CPC A61C 13/34 (2013.01) [A61C 8/009 (2013.01); A61C 9/0046 (2013.01); G06T 17/00 (2013.01); G06T 2207/30036 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A manufacturing method of denture tray for visual marking, the method comprising:
establishing a three-dimensional model of a target dentition of a target patient, wherein the three-dimensional model of the target dentition is a three-dimensional model of a lower dentition or a three-dimensional model of an upper dentition;
obtaining a three-dimensional model of a substrate of the denture tray based on the three-dimensional model of the target dentition;
providing a through hole at a preset position on the three-dimensional model of the substrate of the denture tray;
establishing a three-dimensional model of a fixed connection portion on an outer side surface of the three-dimensional model of the substrate of the denture tray to form a three-dimensional model of the denture tray, wherein the three-dimensional model of the fixed connection portion is integrally connected with the three-dimensional model of the substrate of the denture tray; and
manufacturing the denture tray based on the three-dimensional model of the denture tray;
wherein obtaining the three-dimensional model of the substrate of the denture tray based on the three-dimensional model of the target dentition comprises:
obtaining a preset number of vertices on a surface of the three-dimensional model of the target dentition based on a preset viewpoint and the preset number of position points, wherein the position points are preset obtaining a closed curve on the surface of the three-dimensional model of the target dentition based on the preset number of vertices; performing offset processing on a closed surface of the surface of the three-dimensional model of the target dentition above the closed curve to obtain an offset surface; and forming a three-dimensional model of the substrate of the denture tray based on the closed surface and the offset surface.