Source: https://patents.google.com/patent/US10085823B2/en
Timestamp: 2019-05-24 10:34:33
Document Index: 287839694

Matched Legal Cases: ['Application No. 61', 'art 1', 'art 2', 'art 3', 'art 4', 'art 1', 'art 2', 'art 3', 'art 4', 'art 1']

US10085823B2 - Orthodontic repositioning appliances having improved geometry, methods and systems - Google Patents
Orthodontic repositioning appliances having improved geometry, methods and systems Download PDF
US10085823B2
US10085823B2 US14/490,404 US201414490404A US10085823B2 US 10085823 B2 US10085823 B2 US 10085823B2 US 201414490404 A US201414490404 A US 201414490404A US 10085823 B2 US10085823 B2 US 10085823B2
US14/490,404
US20150004554A1 (en
2008-01-29 Priority to US2453608P priority Critical
2008-11-26 Priority to US12/324,714 priority patent/US8899977B2/en
2014-09-18 Application filed by Align Technology Inc filed Critical Align Technology Inc
2014-09-18 Priority to US14/490,404 priority patent/US10085823B2/en
2015-01-01 Publication of US20150004554A1 publication Critical patent/US20150004554A1/en
2018-10-02 Publication of US10085823B2 publication Critical patent/US10085823B2/en
This application is a divisional application of application Ser. No. 12/324,714, filed Nov. 26, 2008, issued as U.S. Pat. No. 8,899,977, which claims the benefit of U.S. Provisional Application No. 61/024,536, filed Jan. 29, 2008, the entire contents of each of which are hereby incorporated by reference in their entirety.
Referring to FIG. 11C, the predetermined relief on the aligner is illustrated by the shown arrow, whereby the engagement between the aligner and the tooth at the location resulting in the undesirable force is removed by modifying the shape of the aligner geometry. In this manner, in one aspect, and as shown in FIG. 11D, the intended and desirable force applied upon the tooth for example, in the x-direction, is achieved by, for example, modifying the aligner shape geometry.
a shell having teeth receiving cavities shaped to receive and position a patient's teeth, one or more of the cavities shaped to apply a resiliently repositioning force to move the patient's teeth from the current arrangement toward the target arrangement, the shell comprising a cavity having a ridge, the ridge having a length and a width, the length being greater than the width, the ridge configured to apply a repositioning force to a patient's tooth corresponding to a selected tooth movement, the cavity further comprising a modification to a portion of the shell selected to compensate for a contact of the portion of the shell with the patient's tooth due to positioning of the ridge in the cavity.
2. The appliance of claim 1, wherein the contact comprises an unwanted distortion in a shape of the appliance when worn by the patient.
3. The appliance of claim 1, wherein the contact comprises an unwanted force vector applied to a received tooth by a surface of the appliance.
4. The appliance of claim 3, wherein the modification comprises adding a relief to the portion of the shell so as to counteract the unwanted force vector.
5. The appliance of claim 1, wherein the modification comprises changing the shape or curvature of a surface of the appliance.
6. The appliance of claim 1, wherein the modification comprises changing a shape or curvature of a surface without removing of a portion of the appliance.
7. The appliance of claim 1, wherein the ridge is a hollow ridge.
8. The appliance of claim 1, wherein the ridge further comprises a material deposited therein.
9. A method of treating a patient, comprising administering to the patient the appliance of claim 1.
10. A system for repositioning a patient's teeth according to an orthodontic treatment plan, the system comprising:
a plurality of appliances shaped to receive and resiliently reposition teeth through a plurality of planned successive tooth arrangements so as to move the patient's teeth along a treatment path from an initial position toward a final position, the appliances each comprising a shell having teeth receiving cavities and wherein the cavities of successive appliances have different geometries shaped to receive and reposition teeth from a first position to a successive position, at least one appliance of the plurality comprising a cavity having a ridge, the ridge having a length and a width, the length being greater than the width, the ridge configured to apply a repositioning force to a patient's tooth corresponding to a selected tooth movement, the cavity further comprising a modification to a portion of the shell selected to compensate for a contact of the portion of the shell with the patient's tooth due to positioning of the ridge in the cavity.
11. The system of claim 10, wherein the contact comprises an unwanted distortion in a shape of the at least one appliance when worn by the patient.
12. The system of claim 10, wherein the contact comprises an unwanted force vector applied to a received tooth by a surface of the at least one appliance.
13. The system of claim 12, wherein the modification comprises adding a relief to the portion of the shell so as to counteract the unwanted force vector.
14. The system of claim 10, wherein the modification comprises changing the shape or curvature of a surface of the at least one appliance.
15. The system of claim 10, wherein the modification comprises changing a shape or curvature of a surface without removing of a portion of the at least one appliance.
16. The system of claim 10, wherein the ridge is a hollow ridge.
17. The system of claim 10, wherein the ridge further comprises a material deposited therein.
18. The system of claim 10, wherein the plurality of appliances comprise a first appliance to reposition teeth from an initial tooth arrangement to a first intermediate arrangement; at least one intermediate appliance to progressively reposition teeth from the first intermediate arrangement to successive intermediate arrangements; and a final appliance to progressively reposition teeth from a last intermediate arrangement toward a final arrangement.
19. The system of claim 10, wherein the planned successive arrangements are based on models of the patient's teeth generated prior to starting the orthodontic treatment plan.
20. An orthodontic appliance, comprising:
a shell having teeth receiving cavities shaped to receive and position a patient's teeth, one or more of the cavities shaped to apply a resiliently repositioning force to move the patient's teeth from the current arrangement toward the target arrangement, the shell comprising a cavity having a ridge-shaped protrusion having a generally semi-circular cross-sectional shape, the ridge-shaped protrusion configured to apply a repositioning force to a patient's tooth corresponding to a selected tooth movement, wherein a length of the ridge-shaped protrusion is greater than a width of the ridge-shaped protrusion, and wherein the cavity further comprises a modification to a portion of the shell selected to compensate for a contact of the portion of the shell with the patient's tooth due to positioning of the ridge-shaped protrusion in the cavity.
US14/490,404 2008-01-29 2014-09-18 Orthodontic repositioning appliances having improved geometry, methods and systems Active 2030-02-28 US10085823B2 (en)
US2453608P true 2008-01-29 2008-01-29
US12/324,714 US8899977B2 (en) 2008-01-29 2008-11-26 Orthodontic repositioning appliances having improved geometry, methods and systems
US14/490,404 US10085823B2 (en) 2008-01-29 2014-09-18 Orthodontic repositioning appliances having improved geometry, methods and systems
US16/107,017 US20190053878A1 (en) 2008-01-29 2018-08-21 Orthodontic repositioning appliances having improved geometry, methods and systems
US16/132,014 US20190008613A1 (en) 2008-01-29 2018-09-14 Orthodontic repositioning appliances having improved geometry, methods and systems
US12/324,714 Division US8899977B2 (en) 2008-01-29 2008-11-26 Orthodontic repositioning appliances having improved geometry, methods and systems
US16/107,017 Continuation US20190053878A1 (en) 2008-01-29 2018-08-21 Orthodontic repositioning appliances having improved geometry, methods and systems
US16/132,014 Continuation US20190008613A1 (en) 2008-01-29 2018-09-14 Orthodontic repositioning appliances having improved geometry, methods and systems
US20150004554A1 US20150004554A1 (en) 2015-01-01
US10085823B2 true US10085823B2 (en) 2018-10-02
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US14/490,404 Active 2030-02-28 US10085823B2 (en) 2008-01-29 2014-09-18 Orthodontic repositioning appliances having improved geometry, methods and systems
US16/107,017 Pending US20190053878A1 (en) 2008-01-29 2018-08-21 Orthodontic repositioning appliances having improved geometry, methods and systems
US16/132,014 Pending US20190008613A1 (en) 2008-01-29 2018-09-14 Orthodontic repositioning appliances having improved geometry, methods and systems
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EP (1) EP2237738A4 (en)
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2008-12-12 WO PCT/US2008/086647 patent/WO2009097054A1/en active Application Filing
2008-12-12 EP EP08871783.0A patent/EP2237738A4/en active Pending
2014-09-18 US US14/490,404 patent/US10085823B2/en active Active
2018-08-21 US US16/107,017 patent/US20190053878A1/en active Pending
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