Patent ID: 6955540

Claim:
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.