Systems and methods for improved engagement between aligners and teeth
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61C-003/00
A61C-007/08
A61C-007/00
출원번호
US-0019219
(2011-02-01)
등록번호
US-9408675
(2016-08-09)
발명자
/ 주소
Knopp, Peter G.
Miller, Aaron J.
Van Den Berg, Rob
출원인 / 주소
ALIGN TECHNOLOGY, INC.
대리인 / 주소
Wilson Sonsini Goodrich & Rosati
인용정보
피인용 횟수 :
0인용 특허 :
155
초록▼
A system and method for repositioning teeth in a patient jaw includes an attachment bonded to a tooth. The attachment has at least one force receiving component for receiving a force. A polymeric shell repositioning appliance is positioned over at least some of the teeth in the patient jaw. The poly
A system and method for repositioning teeth in a patient jaw includes an attachment bonded to a tooth. The attachment has at least one force receiving component for receiving a force. A polymeric shell repositioning appliance is positioned over at least some of the teeth in the patient jaw. The polymeric shell has at least one force transmitting component for engaging the force receiving component to form a locus of engagement. The locus of engagement transmits the force and moves but is maintained as the tooth is repositioned. In specific embodiments the locus of engagement is maintained over a substantial range of motion. The force transmitted at the locus of engagement increases in response to the tooth lagging an intended position. A space between the positioned appliance and the tooth permits the tooth to move into an intended position.
대표청구항▼
1. A system for repositioning teeth, comprising: a force-receiving component for bonding to at least one of a patient's teeth; anda polymeric shell repositioning appliance, having at least one force-transmitting component, for placement over the patient's teeth, the force-transmitting component stru
1. A system for repositioning teeth, comprising: a force-receiving component for bonding to at least one of a patient's teeth; anda polymeric shell repositioning appliance, having at least one force-transmitting component, for placement over the patient's teeth, the force-transmitting component structured so that the force-transmitting component engages the force-receiving component on the at least one tooth at a contact point within a locus of engagement, wherein a position of the contact point adjusts within the locus of engagement as the tooth is repositioned so that the force transmitted to said tooth increases if the tooth lags its intended position. 2. The system of claim 1, wherein the contact point adjusts within a pre-selected distance. 3. The system of claim 2, wherein the distance is at least about 0.5 mm. 4. The system of claim 2, wherein the distance is in the range from 0.1 mm to 1 mm. 5. The system of claim 1, wherein the polymeric shell repositioning appliance includes a cavity shaped so that a space between the appliance and the tooth permits the tooth to move into an intended position. 6. The system of claim 1, wherein the appliance and attachment are shaped to permit the force-receiving component to move relative to the appliance along a channel as the contact point adjusts within the locus of engagement. 7. The system of claim 1, wherein the force-transmitting component and force-receiving component are arranged to rotate, extrude, intrude, or translate at least one of the teeth with the force. 8. The system of claim 1, wherein the force-transmitting component and the force-receiving component comprise a cam and a follower. 9. The system of claim 1, wherein the force-transmitting and force-receiving components are arranged to counter a force from a first surface with a force from a second surface. 10. The system of claim 9, wherein the force from the first surface is an intrusive force and the force from the second surface is an extrusive force, or the force from the first surface is an extrusive force and the force from the second surface is an intrusive force. 11. The system of claim 9, wherein a single attachment device comprises the first surface and the second surface, or a first attachment device comprises the first surface and a second attachment device comprises the second surface. 12. The system of claim 1, wherein the force-transmitting component and the force-receiving component comprise either a pawl and ratchet or meshing teeth. 13. A polymeric shell repositioning appliance, comprising: a shell appliance for placement over a patient's teeth, comprising a plurality of teeth receiving cavities having geometries shaped to receive and resiliently position the patient's teeth, and further comprising at least one force-transmitting component that is structured so that the force-transmitting component engages a force-receiving component bonded to at least one of the patient's teeth at a contact point within a locus of engagement, wherein a position of the contact point adjusts within the locus of engagement as the tooth is repositioned so that the force transmitted to said tooth increases if the tooth lags its intended position. 14. The appliance of claim 13, wherein the contact point adjusts within a pre-selected distance. 15. The appliance of claim 14, wherein the distance is at least about 0.5 mm. 16. The appliance of claim 14, wherein the distance is in the range from 0.1 mm to 1 mm. 17. The appliance of claim 13, further comprising a cavity shaped so that a space between the appliance and the tooth permits the tooth to move into an intended position. 18. The appliance of claim 13, wherein the appliance is shaped to permit the force-receiving component to move relative to the appliance along a channel as the contact point adjusts within the locus of engagement. 19. The appliance of claim 13, wherein the force-transmitting component is arranged to engage the force-receiving component so as to rotate, extrude, intrude, or translate at least one of the teeth with the force. 20. The appliance of claim 13, wherein the force-transmitting component comprises a cam or a follower. 21. The appliance of claim 13, wherein the force-transmitting component is arranged to engage the force-receiving component so as to counter a force from a first surface with a force from a second surface. 22. The appliance of claim 21, wherein the force from the first surface is an intrusive force and the force from the second surface is an extrusive force, or the force from the first surface is an extrusive force and the force from the second surface is an intrusive force. 23. The appliance of claim 21, wherein a single attachment device comprises the first surface and the second surface, or a first attachment device comprises the first surface and a second attachment device comprises the second surface. 24. The appliance of claim 13, wherein the force-transmitting component comprises a pawl, a ratchet, or meshing teeth. 25. A polymeric shell orthodontic appliance, comprising: a shell appliance for placement over a patient's teeth, comprising at least one force-transmitting component for placement over a patient's teeth so that the force-transmitting component engages a force-receiving component bonded to at least one of the patient's teeth at a contact point within a locus of engagement, wherein a position of the contact point adjusts within the locus of engagement as the tooth is repositioned so that the force transmitted to said tooth increases if the tooth lags its intended position, wherein the force-transmitting component comprises a pawl, a ratchet, or meshing teeth. 26. A system for repositioning teeth, comprising: a force-receiving component for bonding to at least one of a patient's teeth; anda polymeric shell repositioning appliance, having at least one force-transmitting component, for placement over the patient's teeth, the force-transmitting component and/or the force-receiving component structured so that the force-transmitting component engages the force-receiving component on the at least one tooth at a contact point within a locus of engagement, wherein a position of the contact point adjusts within the locus of engagement as the tooth is repositioned so that the force transmitted to said tooth increases if the tooth lags its intended position.
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