标准冠内固位体在口腔固定修复领域中的初步应用

目的：探讨成品专用固位体在口腔修复领域中应用的可行性。方法：用荷兰产微型气动弯手机和特制钻头在缺牙两侧基牙近远中面钻孔。将成品专用钛合金冠内固位体粘接在基牙邻面上，制取精确印模，灌制带专用固位体代型的工作模型，铸造抗力桥架并烤瓷人造牙制作固定桥，并将此固位体用于固位条件不良的全冠、桩冠、种植义齿的辅助固位。结果：共制作188例各类固定修复体，其中无冠式固定桥98例，配合全冠制作的固定桥62例，桩冠20例，人工种植牙1例，全冠7例。因适应症选择不当或不规范操作造成在20个月内共6例无冠式固定桥发生松动脱落。结论：此法具有磨牙少、痛苦小、省时简便等优点。也可用于辅助固位。

The Preli Minary Application of Standard Inter-crown Retainer in the Territory of Fixed Restoration

Objective:To discuss the application of standard inter- cr own retainer in the territory of fixed restoration.Methods:At first, prepare anchor channels in the proximal surface of the abutments wit h the special channel prep and micro burs made in Holland. Then cement the stand ard inter-crown retainer in the channels.Make accurate impression and pour a fun ctional model with anchor analogues on.Wax the framework and cast the steel brid ge.At last, make and cement the porcecain restoration.Also, this inter-crown ret ainer can be used to strengthen those full crowns, post crowns, implant supporte d crowns which with a poor rentention.Results:188 patients with fixed restoration of all kinds with the inter-crown retainer were studied. Among these fixed restorations, there are 98 crownless bridge works and 62 crown fixed bridge, 20 post crown, 1 implant supported crown, 7 full crowns, 6 crownl ess bridge works in all loose and drop in 20 month for unsuitable case or operat ion.Condusions:This method has many advantages, less grind ing of abutments,less pain,less time etc. At the same time, the inter-crown reta iner can be used to strengthen full crown, post crown etc.