Dental restoration molds

Patent metadata

Field	Value
Publication number	US-11801126-B2
Application number	US-201816131698-A
Country	US
Kind code	B2
Filing date	Sep 14, 2018
Priority date	Sep 19, 2017
Publication date	Oct 31, 2023
Grant date	Oct 31, 2023

Abstract

In some examples, a tool for forming a dental restoration comprises a preformed mold body configured to provide a patient-specific, customized fit with at least one tooth to be restored of a patient. The mold body is configured to align with a portion of a surface of the at least one tooth, and is configured to combine with the at least one tooth to define a mold cavity encompassing at least a portion of desired tooth structure of the at least one tooth to be restored of the patient. The portion of desired tooth structure defines a transition from a supragingival surface of the at least one tooth to a subgingival surface of the at least one tooth.

First claim

What is claimed is:

1. A tool for forming a dental restoration, the tool comprising:
a preformed mold body configured to provide a patient-specific, customized fit with at least one tooth to be restored of a patient, the mold body configured to align with a portion of a surface of the at least one tooth,
the mold body being configured to combine with the at least one tooth to define a mold cavity encompassing at least a portion of desired tooth structure of the at least one tooth to be restored of the patient,
wherein the mold body comprises a first registration arm projecting in a generally mesial-distal direction from a first side of the mold body, wherein the first registration arm is configured to align with at least a portion of an occlusal or an incisal surface of a first tooth adjacent to the at least one tooth to be restored and a second registration arm projecting in a generally mesial-distal direction from a second side of the mold body, wherein the second registration arm is configured to align with at least a portion of an occlusal or an incisal surface of a second tooth also adjacent to the at least one tooth to be restored.

2. The tool of claim 1 , wherein the desired tooth structure of the at least one tooth to be restored defines a tooth structure that tapers from a supragingival surface of the at least one tooth to a subgingival surface of the at least one tooth.

3. The tool of claim 1 , wherein the mold body is configured to contact at least a portion of a subgingival surface of the at least one tooth to concentrate sealing pressure at least a portion of a perimeter of the mold cavity.

4. The tool of claim 1 , wherein a subgingival surface of the at least one tooth comprises a root of the at least one tooth.

5. The tool of claim 1 , wherein the mold body is configured to extend between a portion of gingiva of the patient and a subgingival surface of the at least one tooth to be restored.

6. The tool of claim 1 , wherein the mold body is configured to displace a portion of gingiva of the patient proximate to the at least one tooth to be restored when the mold body is positioned over the at least one tooth to define the mold cavity.

7. The tool of claim 1 , wherein the portion of desired tooth structure of the tooth to be restored further comprises at least a portion of an interproximal surface of the at least one tooth.

8. The tool of claim 1 , wherein the mold body defines an injection port.

9. The tool of claim 1 , wherein the mold body comprises a gripping member.

10. The tool of claim 1 , wherein the mold body comprises a wedging member configured to displace a tooth adjacent to the at least one tooth to be restored when the mold body is positioned over the at least one tooth to define the mold cavity.

11. The tool of claim 1 , wherein the mold body is configured to align with a second portion of a surface of the at least one tooth to be restored, the mold body being configured to combine with the at least one tooth to define a second mold cavity encompassing at least a second portion of desired tooth structure of the at least one tooth to be restored of the patient, wherein the second portion of desired tooth structure of the at least one tooth to be restored comprises at least a second transition from a second supragingival surface of the at least one tooth to a second subgingival surface of the at least one tooth.

12. The tool of claim 1 , wherein the mold body comprises an opening proximate an incisal or occlusal surface of the at least one tooth to be restored.

13. The tool of claim 1 , wherein the mold body comprises a release film or coating configured to facilitate release of restorative material from the surface of the mold body.

14. The tool of claim 1 , wherein at least a portion of the mold body is made of restorative material.

15. The tool of claim 1 , wherein the at least one of the first and second registration arms is configured to align with at least a portion of an incisal surface of the tooth adjacent to the at least one tooth to be restored.

16. The tool of claim 2 , and wherein at least a portion of the subgingival portion extends from a facial region of the tooth to be restored, through the interproximal surfaces, to a lingual region of the tooth to be restored.

17. The tool of claim 1 , wherein the tooth adjacent to the at least one tooth to be restored is not to be restored.

18. The tool of claim 2 further including a subgingival portion that provides a smooth transition from the supragingival surface of the at least one tooth to the subgingival surface of the at least one tooth.

19. The tool of claim 1 , wherein the first registration member and the second registration arms extend away from the mold body along a substantially horizontal path.

20. The tool of claim 1 , wherein the mold body is a preformed one-piece mold body.

21. A tool for forming a dental restoration, the tool comprising:
a preformed mold body configured to provide a patient-specific, customized fit with at least one tooth to be restored of a patient, the mold body configured to align with a portion of a surface of the at least one tooth,
the mold body being configured to combine with the at least one tooth to define a mold cavity encompassing at least a portion of desired tooth structure of the at least one tooth to be restored of the patient,
wherein the mold body comprises at least one registration arm projecting in a generally mesial-distal direction from a first side of the mold body, wherein the first registration arm is configured to align with at least a portion of an occlusal or an incisal surface of a first tooth adjacent to the at least one tooth to be restored,
subgingival portions forming a perimeter of the mold cavity that extends adjacent a subgingival surface of the at least one tooth to be restored, and wherein at least a portion of the subgingival portions extends from a facial region of the tooth to be restored, through the interproximal surfaces, to a lingual region of the tooth to be restored.

22. The tool of claim 21 , wherein a subgingival surface of the at least one tooth comprises a root of the at least one tooth.

23. The tool of claim 21 , wherein the portion of desired tooth structure of the tooth to be restored further comprises at least a portion of an interproximal surface of the at least one tooth.

24. The tool of claim 21 , and wherein the subgingival portion is configured to contact at least a portion of the subgingival surface of the at least one tooth to concentrate sealing pressure at least a portion of a perimeter of the mold cavity.

Assignees

• 3M Innovative Properties Company

Inventors

• Hansen James D
• Languell Katelyn M
• Dingeldein Joseph C
• Duerst Lois F

Classifications

• A61C13/0004 Primary

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

• A61C5/77 Primary

  Methods or devices for making crowns · CPC title

• A61C5/88

  Wedges · CPC title

• A61C9/0033

  Gingival retraction appliances · CPC title

• A61C13/0019

  using three dimensional printing · CPC title