| 摘要 |
<p>The anchor piece for a dental prosthesis consists of a male mold with spherical head and fixed to a tooth, and a female mold (4) connectable to the false tooth. The female mold has an internal thread (9) and a lamellar insert (5) with thread and containing and retaining the spherical head of the male mold. The retaining force of the lamellar insert is continuously adjustable by turning it. The inner surface (11) of the female mold on which the retention part of the lamellar insert rests, tapers down conically from its free end (10) inwards. The female mold has a thrust piece (15), and a spherical surface (17) as stop for the spherical head. The thrust piece has a front plate (18) inserted at the end (19) of the housing (13) furthest from the free end.</p> |
