| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an artificial teeth that can prevent the invasion of deposited substance and can maintain the state in which an implant functions for a long time. SOLUTION: The implant for fixing the bridged artificial teeth has a 1st section 1, which can be retained inside the jaw bone, and a 2nd section for upper structure inside the recessed part of 1st section 1. The 2nd section 2 is protected so as not to be twisted and can be moved while being limited axially and/or radically to the 1st section. A gap required for that movement is closed by a cuff-shaped thin elastically warp ring 20 composed of metal, especially, thin titanium sheet. In order to improve elasticity, one bent part 21 or recessed or projecting curve is provided at least on the peripheral wall surface of ring 20. The ring 20 is energized and welded between the 1st section 1 and the 2nd section 2. A material-thickened part 22 can be provided at one terminal edge at least on the peripheral surface of ring. The thickness of ring 20 is from 0.07 to 0.12 mm.</p> |
