| 摘要 |
<p>Between a first male element (1) anchored to the pier tooth, and a second female element (3), which is integral with the removable prosthesis, an elastic retention system is provided, having a spherical restraining member (5) made of a material having a certain degree of elastic give, so as to constitute simultaneously both the component which comes into contact with a corresponding shaping of the element to be held, and also the component which generates the elastic effect. This effect can be used also to obtain a springy prosthesis. Said spherical member is easily interchangeable. <IMAGE></p> |
