Preparation for being fastened on a natural tooth part or tooth and corresponding fastening method
First Claim
1. A preparation (10, 11, 12, 13, 14, 15, 16, 17) to be fixed on a natural tooth part or tooth, in particular for replacement of a load-bearing tooth part, said preparation being positionable in the natural tooth part or on the natural tooth part or tooth and comprising:
- at least one region (10.2, 12.2, 14.2, 15.2, 16.2, 17.2) or one part (11.2) of a material with thermoplastic properties, the at least one region forming at least part of the preparation surface and the at least one part being positionable to form at least part of the preparation surface, wherein the preparation has oscillation properties with damping losses which are so small that local stress concentrations are required for liquefying the material by oscillation, and wherein the preparation is designed in a manner such that the stress concentrations only occur in the region of the preparation surface.
1 Assignment
0 Petitions
Accused Products
Abstract
A preparation (10, 11,12,13) to be fixed to a natural tooth part or tooth, in particular for the replacement of a load-bearing tooth part, is for example a filling for a drilled-out tooth (1), a crown, bridge or prosthesis to be placed on a tooth stub, or a tooth pin to be fixed in a tooth root for fastening an artificial tooth, a bridge or a prosthesis. The preparation has surface regions which consist of a material with thermoplastic properties. The preparation (10, 11, 12,13) is designed in a manner such that it has oscillation properties with such low damping losses that for a liquefaction of the material with thermoplastic properties by way of oscillations there are local stress concentrations required, and in a manner such that such stress concentrations only occur in the region of the preparation surface. The preparation is positioned on a suitably prepared natural tooth part in a manner such that the material with the thermoplastic properties is in contact or may be brought into contact with the dentin surface and/or enamel surface. The preparation is then made to mechanically oscillate and is simultaneously pressed against the natural tooth part, whereby the material with the thermoplastic properties is at least partly liquefied and brought into intimate contact with the dentin or enamel surface in a manner such that after solidification it forms a positive fit and/or material fit connection. Teeth restored with such preparations have a high stability and a long life, which in particular is attributed to the fact that the thermoplastic material, in contrast to cements used for the same purpose, shrinks less and has the ability to relieve internal stress by creeping.
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Citations
20 Claims
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1. A preparation (10, 11, 12, 13, 14, 15, 16, 17) to be fixed on a natural tooth part or tooth, in particular for replacement of a load-bearing tooth part, said preparation being positionable in the natural tooth part or on the natural tooth part or tooth and comprising:
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at least one region (10.2, 12.2, 14.2, 15.2, 16.2, 17.2) or one part (11.2) of a material with thermoplastic properties, the at least one region forming at least part of the preparation surface and the at least one part being positionable to form at least part of the preparation surface, wherein the preparation has oscillation properties with damping losses which are so small that local stress concentrations are required for liquefying the material by oscillation, and wherein the preparation is designed in a manner such that the stress concentrations only occur in the region of the preparation surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method for fastening a preparation (10, 11, 12, 13, 14, 15, 16, 17) comprising at least one region (10.2, 12.2, 14.2, 15.2, 16.2, 17.2) or one part (11.2) of a material with thermoplastic properties, the at least one region forming at least part of the preparation surface and the at least one part being positionable to form at least part of the preparation surface, and the preparation having oscillation properties with damping losses so small as to require local stress concentrations for liquefying the material by oscillation, and the preparation being designed in a manner such that the stress concentrations only occur in the region of the preparation surface, the method comprising the steps of:
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preparing a natural tooth part or tooth, positioning the preparation (10, 11, 12, 13, 14, 15, 16, 17) in the region of the prepared tooth part or tooth in a manner such that the material with thermoplastic properties is in contact or can be brought into contact with a dentin surface and/or an enamel surface of the natural tooth part or tooth, and exiting the preparation into mechanical oscillation and simultaneously pressing it against the tooth part or tooth. - View Dependent Claims (17, 18, 19, 20)
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Specification