IP Library Granted Patent US 10,820,967
Granted Patent B2
US 10,820,967 · App. 15/423,418 · Granted Nov 3, 2020

Tactile objects for orthodontics, systems and methods

Inventors: Chunhua Li (Cupertino, CA); Jennifer Chen (San Francisco, CA); John Morton (San Jose, CA); Jon Moss (Antioch, CA); Clark Kaufhardt (Danville, CA); Heng Cao (Santa Clara, CA)
Assignee: ALIGN TECHNOLOGY, INC.
A61C7/08A61C7/14B33Y80/00Y10T29/49568
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Quick Facts
Patent No.
US 10,820,967
App. No.
15/423,418
Granted
Nov 3, 2020
Kind
B2
Abstract

Methods, systems, and apparatus's for improving orthodontic treatments. In an embodiment, an orthodontic system including a tactile object is provided for modulating an engagement between a tooth attachment and an orthodontic appliance.

Claims (40)

1. A system for orthodontically positioning a patient's tooth, the system comprising:

an attachment adapted to be attached to the patient's tooth;

a patient removable orthodontic tooth positioning appliance having teeth receiving cavities shaped to receive and apply a resilient positioning force to the patient's teeth, at least one of the teeth receiving cavities comprising an attachment receiving well having a cross sectional shape that conforms to a cross sectional shape of the attachment and including an upper surface and a lower surface and being configured to engage with and receive therein the attachment when the patient removable orthodontic tooth positioning appliance is worn by the patient and a force is being applied to the attachment, the upper surface facing the lower surface;

a first tactile object extending from and coupled to the upper surface of the attachment receiving well; and

a second tactile object, separate from the first tactile object, extending from and coupled to the lower surface of the attachment receiving well;

wherein the first tactile object and the second tactile object modulate engagement between the attachment and the attachment receiving well when the patient removable orthodontic tooth positioning appliance is worn by the patient;

wherein the first tactile object and the second tactile object are each made from a material having an elastic modulus less than an elastic modulus of a material from which the patient removable orthodontic tooth positioning appliance is formed;

wherein the first tactile object is shaped according to a shape of the upper surface of the attachment receiving well to provide a locking fit between the patient removable orthodontic tooth positioning appliance and the attachment; and

wherein the second tactile object is shaped according to a shape of the lower surface of the attachment receiving well to provide a locking fit between the patient removable orthodontic tooth positioning appliance and the attachment.

2. The system of claim 1 , wherein the first tactile object and the second tactile object are made from the same material.

3. The system of claim 1 , wherein the first tactile object and the second tactile object are made from different material.

4. The system of claim 1 , wherein the first tactile object and the second tactile object have different malleability.

5. The system of claim 1 , further comprising a third tactile object including first and second portions extending from the attachment receiving well.

6. The system of claim 5 , wherein the first and second portions apply a reciprocal force to the attachment.

7. An orthodontic positioning appliance comprising:

a patient removable orthodontic tooth positioning appliance having teeth receiving cavities shaped to receive and apply a resilient positioning force to the patient's teeth, where at least one of the teeth receiving cavities includes an attachment receiving well shaped to engage with and apply a force to an attachment adapted to be disposed on the patient's tooth and including an upper surface and a lower surface, the upper surface facing the lower surface;

a first tactile object extending from and coupled to the upper surface of the attachment receiving well; and

a second tactile object, separate from the first tactile object, extending from and coupled to the lower surface of the attachment receiving well;

wherein the first tactile object and the second tactile object modulate the engagement between the attachment and the attachment receiving well and the application of force between a surface of the attachment and the patient removable orthodontic tooth positioning appliance, wherein the patient removable orthodontic tooth positioning appliance is worn by the patient;

wherein the first tactile object and the second tactile object each having an elastic modulus less than an elastic modulus of the patient removable orthodontic tooth positioning appliance;

wherein the first tactile object is formed in a shape of the upper surface of the attachment receiving well to provide a locking fit between the patient removable orthodontic tooth positioning appliance and the attachment; and

wherein the second tactile object is formed in a shape of the lower surface of the attachment receiving well to provide a locking fit between the patient removable orthodontic tooth positioning appliance and the attachment.

8. The orthodontic positioning appliance of claim 7 , wherein the first tactile object and the second tactile object are made from the same material.

9. The orthodontic positioning appliance of claim 7 , wherein the first tactile object and the second tactile object are made from different material.

10. The orthodontic positioning appliance of claim 7 , wherein the first tactile object and the second tactile object have different malleability.

11. The orthodontic positioning appliance of claim 7 , further comprising a third tactile object including first and second portions extending from the attachment receiving well.

12. The orthodontic positioning appliance of claim 11 , wherein the first and second portions apply a reciprocal force to the attachment.

13. A method for applying a tooth positioning force to the dentition of a patient, the method comprising:

providing an attachment adapted for disposal on at least one of the patient's teeth;

providing a patient removable orthodontic tooth positioning appliance having teeth receiving cavities shaped to receive and apply a resilient positioning force to the patient's teeth, where at least one of the teeth receiving cavities includes an attachment receiving well having a cross sectional shape that conforms to a cross sectional shape of the attachment and including an upper surface and a lower surface and being configured to engage with and receive therein the attachment when the patient removable orthodontic tooth positioning appliance is worn by the patient and a force is being applied to the attachment, the upper surface facing the lower surface; and

coupling a first tactile object to the upper surface of the attachment receiving well and a second tactile object, separate from the first tactile object, to the lower surface of the attachment receiving well, such that the first tactile object and the second tactile object modulate engagement between the attachment and the attachment receiving well when the patient removable orthodontic tooth positioning appliance is worn by the patient;

wherein the first tactile object and the second tactile object are each made from a material having an elastic modulus less than an elastic modulus of a material from which the patient removable orthodontic tooth positioning appliance is formed;

wherein the first tactile object is shaped according to a shape of the upper surface of the attachment receiving well to provide a locking fit between the patient removable orthodontic tooth positioning appliance and the attachment;

wherein the second tactile object is shaped according to a shape of the lower surface of the attachment receiving well to provide a locking fit between the patient removable orthodontic tooth positioning appliance and the attachment; and

wherein the first tactile object and the second tactile object each have a respective uniform thickness.

14. The method of claim 13 , wherein the first tactile object and the second tactile object are made from the same material.

15. The method of claim 13 , wherein the first tactile object and the second tactile object are made from different material.

16. The method of claim 13 , wherein the first tactile object and the second tactile object have different malleability.

17. The method of claim 13 , further comprising a third tactile object that includes first and second portions extending from the attachment receiving well.

18. The method of claim 17 , wherein the first and second portions apply a reciprocal force to the attachment.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 2, 2021
From: LI, CHUNHUA; CHEN, JENNIFER; MORTON, JOHN; MOSS, JON; KAUFHARDT, CLARK; CAO, HENG
To: ALIGN TECHNOLOGY, INC.
Reel/Frame 055811/0198 →
Continuity (3)
Continuation 14206836 · Mar 12, 2014
Division 12633715 · Dec 8, 2009
Related Publication 20170143452A1 · May 25, 2017
Cited By (1)
US 12,329,602