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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 11890157 B1

PDFFull Text
Date of Patent:
Feb. 06, 2024

Filed:

Jun. 11, 2019

Ceramic processing and design for the direct manufacture of customized labial and lingual orthodontic clear aligner attachments

Applicant:

Lightforce Orthodontics, Inc., Cambridge, MA (US);

Inventors:

Alfred Charles Griffin, III, Boston, MA (US);

Kelsey A Fafara, Watertown, MA (US);

Assignee:

LightForce Orthodontics, Inc., Burlington, MA (US);

Attorney:

Wolf, Greenfield & Sacks, P.C.

Primary Examiner:

Heidi M Eide

Int. Cl.
CPC ...
A61C 7/08 (2006.01); B33Y 80/00 (2015.01); A61C 7/00 (2006.01); A61C 13/00 (2006.01); B33Y 50/02 (2015.01); B33Y 70/00 (2020.01); B29C 64/393 (2017.01); G05B 19/4099 (2006.01); A61C 7/14 (2006.01); A61C 7/36 (2006.01); A61C 7/16 (2006.01); B33Y 10/00 (2015.01); A61C 7/20 (2006.01); B29K 33/00 (2006.01); B29K 509/02 (2006.01); B29L 31/00 (2006.01); B22F 10/10 (2021.01); B22F 10/12 (2021.01); B22F 10/28 (2021.01); B22F 12/42 (2021.01); B22F 10/80 (2021.01);
U.S. Cl.
CPC ...
A61C 7/002 (2013.01); A61C 7/08 (2013.01); A61C 13/0004 (2013.01); A61C 13/0013 (2013.01); B29C 64/393 (2017.08); B33Y 50/02 (2014.12); B33Y 70/00 (2014.12); G05B 19/4099 (2013.01); A61C 7/145 (2013.01); A61C 7/148 (2013.01); A61C 7/16 (2013.01); A61C 7/20 (2013.01); A61C 7/36 (2013.01); A61C 13/0019 (2013.01); B22F 10/10 (2021.01); B22F 10/12 (2021.01); B22F 10/28 (2021.01); B22F 10/80 (2021.01); B22F 12/42 (2021.01); B29K 2033/08 (2013.01); B29K 2509/02 (2013.01); B29L 2031/7532 (2013.01); B33Y 10/00 (2014.12); B33Y 80/00 (2014.12); G05B 2219/35134 (2013.01); G05B 2219/49007 (2013.01);
Abstract

A method of manufacturing pre-formed, customized, ceramic, labial/lingual orthodontic clear aligner attachments (CCAA) by additive manufacturing (AM) may comprise measuring dentition data of a profile of teeth of a patient, based on the dentition data, creating a three dimensional computer-assisted design (3D CAD) model of the patient's teeth using reverse engineering, and saving the 3D CAD model, designing a 3D CAD structure model for one or more CCAA on various parts of each tooth, importing data related to the 3D CAD CCAA structure model into an AM machine, directly producing the CCAA in the ceramic slurry-based AM machine by layer manufacturing, enabling the provider to deliver patient-specific CCAA's by an indirect bonding method to the patient's teeth to improve the efficacy and retention of the clear aligners.

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