US 11,998,415 B2
System and method of forming a custom bleaching tray with trench and material reservoirs
Mark Lorich, Los Angeles, CA (US); and Amir Gordgi, Los Angeles, CA (US)
Assigned to SprintRay, Inc., Los Angeles, CA (US)
Filed by SprintRay Inc., Los Angeles, CA (US)
Filed on Nov. 8, 2022, as Appl. No. 17/983,393.
Claims priority of provisional application 63/277,054, filed on Nov. 8, 2021.
Prior Publication US 2023/0144730 A1, May 11, 2023
Int. Cl. A61C 19/06 (2006.01); B29C 64/188 (2017.01); B29C 64/393 (2017.01); B33Y 10/00 (2015.01); B33Y 30/00 (2015.01); B33Y 50/02 (2015.01); G06T 7/00 (2017.01); B29L 31/00 (2006.01)
CPC A61C 19/066 (2013.01) [B29C 64/188 (2017.08); B29C 64/393 (2017.08); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12); B33Y 50/02 (2014.12); G06T 7/0012 (2013.01); B29L 2031/753 (2013.01); G06T 2210/41 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A method for forming a custom bleaching tray, comprising:
receiving a digital model of a patient's mouth, the digital model including an initial tooth model and an initial gingiva model;
moving at least one tooth in the initial tooth model and a corresponding gingiva portion in the initial gingiva model buccally, distally, and/or medially to form a moved tooth model and a moved gingiva model;
separating the moved tooth model from the moved gingiva model to form a separated moved gingiva model;
placing the initial tooth model onto the separated moved gingiva model to form a trench between the at least one tooth in the initial tooth model and the corresponding gingiva portion in the moved gingiva model to form an updated digital model;
producing a physical bleaching tray corresponding to the updated digital model of the patient's mouth, the physical bleaching tray including a bleaching material reservoir at an inner surface that corresponds to a buccal surface of the at least one tooth in the initial tooth model and a bleaching material barrier, wherein the bleaching material barrier is formed based on the trench.