Direct fabrication of mixed metal and polymer orthodontic devices
The disclosed systems, methods, and apparatus for designing, fabricating, and making directly fabricated metal and polymer dental appliances may include receiving patient data and a treatment plan and determining, using the patient data and the treatment plan, an appliance design for treating the patient. The method may include directly fabricating a metal and polymer appliance based on the appliance design. The apparatus may include a directly fabricated metal and polymer appliance.
1. A method of directly fabricating an orthodontic device, the method comprising: directly fabricating polymer tooth receiving cavities of an orthodontic device for a first arch of a patient, the tooth receiving cavities including at least one sidewall and being fabricated of a first polymer material, and a first tooth receiving cavity of the tooth receiving cavities having an attachment receiving well shaped to receive an attachment located on a tooth of the first arch of the patient; and directly fabricating a metal reinforcement member proximate the attachment receiving cavity in the at least one sidewall, the metal reinforcement member extending between a first end and a second end within the at least one sidewall, the metal reinforcement member extending between the first end and the second end with an apex being located between the first end and the second end, the apex being more proximate the attachment receiving cavity in a mesial-distal direction than the first end and the second end wherein the first end of the metal reinforcement member located within a sidewall of a first tooth receiving cavity of the tooth receiving cavities and the second end of the metal reinforcement member located within the sidewall of the first tooth receiving cavity of the tooth receiving cavities, wherein the metal reinforcement member comprises a metal fiber fabricated of a metal, different than the first polymer material.
2. The method of claim 1 , wherein:
directly fabricating the tooth receiving cavities occurs at the same time as directly fabricating the metal reinforcement member.
3. The method of claim 1 , wherein directly fabricating the metal reinforcement member within the at least one sidewall includes:
fabricating the metal reinforcement member to extend from the first end to second end along a occlusal-gingival direction of the orthodontic device.
4. The method of claim 1 , further comprising:
a second metal reinforcement member, the second metal reinforcement member extending from a first end within the first tooth receiving cavity to a second end in a second tooth receiving cavity, the first tooth receiving cavity and the second tooth receiving cavity are adjacent.
5. The method of claim 1 , further comprising:
a second metal reinforcement member, the second metal reinforcement member extending from a first end within the first tooth receiving cavity to a second end in a second tooth receiving cavity, the first tooth receiving cavity and the second tooth receiving cavity are not adjacent.
6. The method of claim 1 , wherein the metal reinforcement member is in a lingual sidewall of the at least one sidewall.
7. The method of claim 1 , further comprising:
directly fabricating an integral aligner hook or button on the at least one sidewall.
8. The method of claim 7 , further comprising a second metal reinforcement member wherein the second metal reinforcement member includes a first end in the at least one sidewall and a second end within the hook or button.
9. The method of claim 8 , wherein the second metal reinforcement member extends along a shaft of the button.
10. The method of claim 8 , wherein the second metal reinforcement member extends along a shaft of the hook.
11. The method of claim 8 , wherein the second end of the second metal reinforcement member is in a shaft of the button.
12. The method of claim 8 , wherein the second end of the second metal reinforcement member is in a head of the button.