Hybrid orthodontic archwires
Hybrid orthodontic archwire designs are disclosed. Hybrid archwires may have bracket-archwire sections and interproximal archwire sections in which each section can vary in cross-section shape, size, and/or material properties. Bracket-archwire sections may be configured to promote torque control and may have rectangular cross-sections. Interproximal archwire sections may be configured to be bent into force-promoting loops and may have round cross sections. Each archwire section may be straight or bent into any shape. Hybrid archwires may have sliding sections and non-sliding sections. Non-sliding sections may have male connectors configured to prevent the archwire from sliding relative to the orthodontic brackets and/or may have cross-sectional shapes, sizes, or coatings that resist sliding relative to sliding sections. Sliding sections may have linear archwire segments. Hybrid archwires may have distal or posterior non-sliding sections and an intermediate anterior or medial sliding section.
1. A hybrid archwire for orthodontic treatment, the hybrid archwire comprising:
a first section of archwire configured to couple to a first plurality of orthodontic brackets having archwire slots for receiving the archwire, wherein the first section of archwire comprises a plurality of male structures and a plurality of interproximal structures with respect to a patient's teeth, such that each male structure of the plurality of male structures corresponds to each and every tooth of the first section and only a single interproximal structure is between each and every male structure of the plurality of male structures of the first section, each interproximal structure of the plurality of interproximal structures corresponding to an interdental space in between each and every tooth of a first portion of a dental arch, and wherein the first section of archwire does not slide with respect to the first plurality of orthodontic brackets in the first section when each of the male structures are attached to corresponding brackets of the first plurality of brackets of the first section; and
a second section of archwire corresponding to at least two of the patient's teeth of a second portion of the dental arch and comprising a continuous curve and being devoid of any male structures or interproximal structures, the second section configured to couple to a second plurality of orthodontic brackets having archwire slots for receiving the archwire, and wherein the second section of archwire slides with respect to the second plurality of orthodontic brackets in the second section when coupled to the archwire slots of the second plurality of orthodontic brackets.
2. The hybrid archwire of claim 1 , wherein the first section of archwire and the second section of archwire have different cross-sectional shapes.
3. The hybrid archwire of claim 1 , wherein the diameter or thickness of the second section of archwire is larger than the diameter or thickness of the first section of archwire.
4. The hybrid archwire of claim 1 , wherein the first section of archwire comprises a non-shape memory material and the second section of archwire comprises a shape memory material.
5. An orthodontic appliance comprising the hybrid archwire of claim 1 , the orthodontic appliance further comprising the first plurality of orthodontic brackets and the second plurality of orthodontic brackets.
6. A method of moving teeth, comprising:
providing a single continuous customized archwire created from a virtual set-up utilizing image data from a patient's teeth and configured to move the patient's teeth to a pre-determined desired configuration,
wherein the archwire comprises a first section and a second section, the first section comprising a plurality of male structures and a plurality of interproximal structures with respect to the patient's teeth, such that each male structure corresponds to each and every tooth of the first section and only a single interproximal structure is between each and every male structure of the first section, each interproximal structure corresponding to an interdental space in between each and every tooth of a first portion of a dental arch, the second section corresponding to at least two of the patient's teeth of a second portion of the dental arch and having a continuous curve and being devoid of any male structures or interproximal structures;
positioning the single continuous archwire with respect to the dental arch, wherein the archwire is in a first configuration; and
activating the archwire, wherein activating the archwire comprises deflecting the archwire from its first configuration to a second configuration, and attaching each male loop of the plurality of male loops to corresponding brackets attached to each and every tooth of the dental arch in the first section, thereby allowing the interproximal looped structures to impart forces on the teeth with respect to the teeth in the first section thereby moving the teeth in the first section toward the pre-determined desired configuration as the archwire changes from the second configuration back to the first configuration,
wherein the archwire does not slide with respect to the brackets in the first section when each of the male loops are attached to the corresponding brackets in the first section, wherein the archwire slides with respect to brackets in the second section.
7. The method of claim 6 , wherein activating the archwire leads to mesio-distal tooth movement for at least some of the teeth, occlusal-gingival tooth movement for at least some of the teeth, and facio-lingual tooth movement for at least some of the teeth.
8. The method of claim 6 , wherein the interproximal structures comprises a loop shape.
9. The method of claim 6 , wherein the brackets comprise self-ligating brackets, twin brackets, single-wing brackets, and/or ribbon arch brackets.
10. The method of claim 6 , wherein the archwire comprises a shape memory material.