Systems and methods for fabricating a dental template

Patent metadata

Field	Value
Publication number	US-10874487-B2
Application number	US-201615216171-A
Country	US
Kind code	B2
Filing date	Jul 21, 2016
Priority date	Feb 26, 2003
Publication date	Dec 29, 2020
Grant date	Dec 29, 2020

Abstract

A dental template to position an object on a patient's tooth includes digitizing the patient's tooth; adding virtual objects to predetermined locations on the digitized tooth; and fabricating the dental template to locate the object on the patient's tooth. The template can be used for etching or for positioning brackets on teeth.

First claim

What is claimed is:

1. An apparatus configured for positioning an orthodontic object on teeth of a patient, comprising:
a template adapted for placement over the patient's teeth and including a plurality of teeth receiving cavities, each of the plurality of teeth receiving cavities shaped to receive a corresponding tooth of the patient and having a shape corresponding to a shape of the corresponding tooth and also including one or more openings through a sidewall, the sidewall extending from an occlusal end of a respective tooth receiving cavity to a gingival edge of the respective tooth receiving cavity and the one or more openings defining one or more object support edges, wherein the one or more object support edges are shaped to receive and position one or more orthodontic objects at respective locations and orientations on the patient's teeth, and wherein the one or more openings each comprise a cut-out open to the gingival edge of the respective tooth receiving cavity of the template, wherein the plurality of teeth receiving cavities have a geometry corresponding to a shape of the corresponding tooth of the patient.

2. The apparatus of claim 1 , wherein the template includes a variable physical property material such that the template has a first state for retention of the template on the patient's teeth and a second state for facilitating removal of the template from the patient's teeth.

3. The apparatus of claim 2 , wherein the variable physical property material are physical property switches.

4. The apparatus of claim 3 , wherein the physical property switches are temperature responsive, pH responsive, moisture responsive, or a multilayer system wherein layers of the multilayer system have varying physical properties.

5. The apparatus of claim 1 , wherein the orthodontic object is a bracket.

6. The apparatus of claim 1 , wherein a thickness of the template is at least 0.03 inches in a buccal-lingual direction.

7. The apparatus of claim 1 , wherein the template is unified.

8. The apparatus of claim 1 , wherein the template is articulated, having a plurality of movable template components linked together by sheet material.

Assignees

• Align Technology Inc

Inventors

• Phan Loc X
• Knopp Peter G
• Kuo Eric E
• Abolfathi Amir
• Wen Huafeng

Classifications

• A61C7/146 Primary

  Positioning or placement of brackets; Tools therefor · CPC title

• A61C13/0004

  Computer-assisted sizing or machining of dental prostheses · CPC title

• A61C7/002

  Orthodontic computer assisted systems · CPC title

• Y10T29/49568

  Orthodontic device making · CPC title

• B29L2031/753

  Medical equipment; Accessories therefor (bloodbags, medical bags B29L2031/7148; artificial eyes B29L2011/0008) · CPC title