Lingual orthodontic appliance with removable section
An aesthetic, partially removable orthodontic appliance is described, including a polymeric body that conforms to the lingual soft tissue and at least one wire member extending from the polymeric body. Each wire member releasably engages with a respective anchor that is, in turn, connected to the lingual surface of a respective tooth when the polymeric body is moved in a generally gingival direction into abutting relationship with the lingual soft tissue. Other features of the appliance include self-guiding magnetic couplings and couplings based on interlocking mechanical structures that provide releasable engagement between the removable section and the anchors, as well as related methods for making and using the same.
1. An orthodontic appliance comprising:
a removable section including a polymeric body and one or more wire members extending outwardly from the body, the polymeric body including a posterior area and an anterior area, wherein each wire member of the one or more wire members includes an outer end portion including a first coupling, wherein the body includes an outer surface with a configuration that generally matches the configuration of a patient's lingual soft tissue, and wherein at least one wire member extends from the anterior area of the body to the first coupling in a generally mesial direction towards the position of the patient's central, lateral, or cuspid teeth; and
one or more anchors, each anchor having a base for connecting the anchor to the lingual surface of a tooth, at least one anchor configured to connect to the lingual surface of the patient's central, lateral, or cuspid teeth, wherein the outer end portion of each wire member is releasably connectable to a respective anchor when each anchor is connected to a respective tooth of a dental patient and the removable section is moved in a generally gingival direction into abutting relationship with the patient's lingual soft tissue; wherein the respective anchor includes a second coupling adapted for releasable connection to the first coupling; and wherein the first and second couplings comprise magnetic couplings.
2. The appliance of claim 1 , wherein the outer surface with a configuration that generally matches the configuration of a patient's lingual soft tissue generally matches the patient's palate.
3. The appliance of claim 1 , wherein the outer surface with a configuration that generally matches the configuration of a patient's lingual soft tissue generally matches the attached gingiva of the patient's mandible.
4. The appliance of claim 1 , wherein the first and second couplings include mating surfaces that register the outer end portion of each wire member and the respective anchor to each other.
5. The appliance of claim 1 , wherein the first and second couplings move toward each other in directions generally along a facial-lingual reference axis as the first and second couplings are connected together.
6. The appliance of claim 1 , wherein at least one of the first and second couplings is funneled to facilitate engagement.
7. The appliance of claim 1 , wherein the first coupling member surrounds the second coupling member when connected.
8. The appliance of claim 1 , further comprising a latch for releasably connecting the outer end of each wire member to the respective anchor.
9. The appliance of claim 8 , wherein the latch comprises a generally C-shaped clip.
10. The appliance of claim 1 , wherein the at least one wire member extending from the anterior area comprises a flexible spring that allows movement of the outer ends of the wire member in a direction generally along the mesial direction of extension of the wire members away from the polymeric body.
11. The appliance of claim 1 , further comprising a temporary anchorage device that is releasably connected to the removable section.
12. The appliance of claim 1 , wherein the anchors comprise bondable lingual buttons.
13. The appliance of claim 1 , wherein the anchors comprise a curable composite dental material.
14. The appliance of claim 1 , wherein the lingual surfaces of the anchors are free of undercuts.
15. The appliance of claim 1 , wherein the at least one wire member is releasably connected to the removable section.
16. The appliance of claim 1 , wherein the base has a tooth-facing surface contour that is customized to fit the lingual surfaces of the tooth.
17. The appliance of claim 1 , wherein the anterior area of the body includes a configuration that generally matches the configuration of a patient's lingual soft tissue proximate the central, lateral, and cuspid teeth.