US 11,899,427 B2
Ceramic processing for the direct manufacture of customized labial and lingual orthodontic brackets
Alfred Charles Griffin, III, Lynnfield, MA (US)
Assigned to LightForce Orthodontics, Inc., Burlington, MA (US)
Filed by LightForce Orthodontics, Inc., Burlington, MA (US)
Filed on Feb. 15, 2023, as Appl. No. 18/169,491.
Application 18/169,491 is a continuation of application No. 17/953,871, filed on Sep. 27, 2022, granted, now 11,774,943.
Application 17/953,871 is a continuation of application No. 17/000,286, filed on Aug. 22, 2020, granted, now 11,500,354.
Application 17/000,286 is a continuation of application No. 16/357,052, filed on Mar. 18, 2019, granted, now 10,754,325.
Application 16/357,052 is a continuation of application No. 15/041,895, filed on Feb. 11, 2016, granted, now 10,241,499.
Claims priority of provisional application 62/114,898, filed on Feb. 11, 2015.
Prior Publication US 2023/0195077 A1, Jun. 22, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. G05B 19/4099 (2006.01); A61C 7/14 (2006.01); A61C 7/20 (2006.01); A61B 6/03 (2006.01); A61B 6/00 (2006.01); A61C 7/00 (2006.01); B33Y 80/00 (2015.01); A61C 9/00 (2006.01); A61C 7/16 (2006.01); A61B 6/14 (2006.01)
CPC G05B 19/4099 (2013.01) [A61B 6/032 (2013.01); A61B 6/4085 (2013.01); A61C 7/002 (2013.01); A61C 7/141 (2013.01); A61C 7/145 (2013.01); A61C 7/146 (2013.01); A61C 7/20 (2013.01); A61C 9/006 (2013.01); B33Y 80/00 (2014.12); A61B 6/14 (2013.01); A61C 7/16 (2013.01); G05B 2219/35134 (2013.01); G05B 2219/45167 (2013.01); G05B 2219/49013 (2013.01); G05B 2219/49023 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method of manufacturing a customized labial/lingual orthodontic bracket by digital light processing, said method comprising:
accessing data related to a 3D CAD bracket structure model for the customized labial/lingual orthodontic bracket into a photo-reactive slurry-based Digital Light Processing (DLP) machine; and
directly producing the customized labial/lingual orthodontic bracket in the DLP machine by layer manufacturing, wherein a manufacturing accuracy is from 2 to about 60 micrometers (μm), and wherein a thickness of manufactured layers is from 5 to 100 μm based on resolution requirements of the customized labial/lingual orthodontic bracket.