Systems and methods for fabricating a dental template with a 3-D object placement

• US 7,658,610 B2
• Filed: 03/04/2004
• Issued: 02/09/2010
• Est. Priority Date: 02/26/2003
• Status: Active Grant

• Current Assignee: Align Technology Incorporated
• Original Assignee: Align Technology Incorporated
• Inventors: Knopp, Peter G.
• Primary Examiner(s): Lewis; Ralph A
• Application Number:
  US10/794,324
• Publication Number:
  US 20040229185A1
• Time in Patent Office: 2,168 Days
• Field of Search: 433/24, 433/29, 433/6
• US Class Current: 433/24
• CPC Class Codes: A61C 7/146 Positioning or placement of brackets; Tools therefor
• CPC Class Codes: B33Y 80/00 Products made by additive manufacturing

Abstract

A dental template to position an object on a patient'"'"'s tooth includes digitizing the patient'"'"'s tooth; adding virtual objects to predetermined three-dimensional positions on the digitized tooth; and fabricating the dental template to locate the object at the predetermined 3D position on the patient'"'"'s tooth. The template can be used for etching or for positioning brackets on teeth.

Claims

1. A method of fabricating a dental template to position an object on a patient'"'"'s tooth, comprising:

creating a model of said patient'"'"'s tooth;

adding one or more objects to predetermined locations on the tooth model;

moving at least one object to a predetermined inclination and/or a predetermined angulation;

scaling the tooth model;

superimposing the scaled tooth model over the original tooth model; and

fabricating the dental template to locate the object on the patient'"'"'s tooth with the predetermined inclination and/or angulation.

2. The method of claim 1, further comprising placing a virtual object on the superimposed scaled tooth model.

3. The method of claim 1, further comprising placing a virtual object at a predetermined location and orientation in the superimposed scaled tooth model.

4. The method of claim 1, further comprising removing the tooth model from the scaled tooth model to form a virtual appliance.

5. The method of claim 1, further comprising removing a digitized structure from a virtual object at a distance along the gingival line or lines.

6. The method of claim 1, further comprising removing structure in proximal contact with an adjacent tooth.

7. The method of claim 1, wherein the tooth model is either a physical model or a digital model.

8. The method of claim 1, wherein fabricating comprises rendering a physical dental template using a rapid prototyping method.

9. A method of placing an orthodontic object on a patient'"'"'s tooth, comprising:

digitizing the patient'"'"'s tooth;

adding a virtual object to a predetermined location on the digitized tooth;

moving the virtual object to a predetermined inclination and/or a predetermined angulation;

scaling the digital tooth;

superimposing the scaled digital tooth over the digital tooth;

fabricating the dental template to locate the object on the patient'"'"'s tooth with the determined inclination and/or angulation;

mounting the orthodontic object on the template;

placing the template on the patient'"'"'s teeth; and

bonding the orthodontic object to the tooth.

10. The method of claim 9, further comprising placing the virtual object in the superimposed scaled digital tooth.

11. The method of claim 9, further comprising placing the virtual object at a predetermined location and orientation in the superimposed scaled digital tooth.

12. The method of claim 9, further comprising placing the virtual object at a predetermined location and orientation in the superimposed scaled digital tooth.

13. The method of claim 9, further comprising removing digitized structures at a distance from the gingival line or lines.

14. The method of claim 9, further comprising removing digitized structures in direct interproximal contact with or undesirable proximity to an adjacent tooth.

15. The method of claim 9, further comprising removing buccal, gingival, or lingual structures.

16. The method of claim 9, wherein fabricating comprises rendering a physical dental template using a rapid prototyping method.

17. The method of claim 9, further comprising removing overlapping structure between two teeth.

18. The method of claim 9, further comprising removing overlapping volume between two teeth.

19. The method of claim 9, further comprising removing overlapping space between two teeth.