Extracoronal holding member for dental prostheses

摘要

A holding member assembly comprises a shell-like female part with an annular cavity and a male part with a torus adapted to mate with the cavity. The torus contains a slot with an annular spring which, on insertion of the male into the female, engage in a holding slot of the female part. The female part is embedded into a tooth crown, whereas the male part is connected to a dental prosthesis part. Through constructing the female part with the cavity, it is possible to produce holding members with reduced overall height compared with the known holding members, but which still have an excellent stability.