发明名称 Dental crown holder for attaching false tooth to natural root or implant in jaw has cylindrical thermoplastic outer part fitting onto frustoconical inner part with flange on narrow top and curved base
摘要 <p>A cylindrical thermoplastic outer part or matrix (2) fits onto a hard - gold or ceramic - frustoconical inner part or patrix (1). This has a flange (a) on its narrow top. It has a cone angle (alpha) of 3-8 degrees and a spherically-curved base (b). The diameter of the base is greater than that of the flange. The base is bonded to the top of the natural root or implant (4) in the patient's jaw. The false tooth (3) has a cylindrical blind bore and fits over the matrix. The thickness of the top portion (d) is 1-2 mm, and the thickness of the sidewall at the bottom is 2-3 mm. The patrix may be made by milling using CAD/CAM computer technology.</p>
申请公布号 DE10320474(A1) 申请公布日期 2004.12.02
申请号 DE2003120474 申请日期 2003.05.08
申请人 NIEDERMEIER, WILHELM 发明人
分类号 A61C8/00;(IPC1-7):A61C8/00 主分类号 A61C8/00
代理机构 代理人
主权项
地址