Bonded retainer
A bonded retainer configured to stabilize a plurality of teeth in a jaw, the bonded retainer including a contact surface that is aligned overall with a parabolic curvature of the jaw in a longitudinal direction of the bonded retainer and that is aligned locally with a lingual surface contour of the teeth; a lingual surface that extends lingually in parallel with the contact surface, and retentions that extend from the lingual surface transversal to the longitudinal direction.
1. A bonded retainer integrally made from one piece of material and configured to stabilize a plurality of teeth in a jaw, the bonded retainer comprising:
a continuous contact surface integrally made from the one piece of the material and aligned overall with a parabolic curvature of the jaw in a longitudinal direction of the bonded retainer and is configured to be in direct contact with and aligned locally with a lingual surface contour of the teeth;
a lingual surface extending lingually in parallel with the continuous contact surface; and
retentions integrally made from the one piece of the material and extending from the lingual surface away from the teeth transversal to the longitudinal direction and not in contact with the teeth.
2. The bonded retainer according to claim 1 , wherein the retentions have a local height of at least 0.05 mm.
3. The bonded retainer according to claim 1 , wherein the lingual surface is configured with a saw tooth pattern profile.
4. The bonded retainer according to claim 1 , wherein the bonded retainer is wire shaped and cut from a sheet of material so that the continuous contact surface, the lingual surface and two parallel sections of a surface of the sheet form a diamond shaped cross section of the bonded retainer.
5. The bonded retainer according to claim 4 , wherein the sheet is made from a shape memory material made from a nickel titanium alloy or from Nitinol.
6. The bonded retainer according to claim 4 , wherein the cross section has edge lengths of 0.7 mm at the most.
7. The bonded retainer according to claim 1 , wherein the bonded retainer is made by 3D-printing.
8. The bonded retainer according to claim 7 , wherein the bonded retainer is made from a thermoplastic synthetic material or from polyetheretherketone.
9. The bonded retainer according to claim 1 , wherein the retentions are configured mushroom shaped.
10. The bonded retainer according to claim 1 , wherein a surface of the bonded retainer is electropolished or plasma polished.
11. The bonded retainer according to claim 1 , wherein the lingual contact surface is configured with a pattern profile.