Watanabe M, Sawada T, Ukiya M
Kanagawa Shigaku. 1989 Mar;23(4):622-8.
As dental technologies become highly developed, techniques have been more diversified. From as aspect of prosthodontic practice, both esthetic and functional requirements are emphasized for coronal restoration and consequently, these should be considered in the routine procedure. In fabrication of coronal restorations, metal, porcelain and resin are commonly used, and there exists the various disadvantages for metal cast method due to complicated processes by using different dental materials. Therefore, an electroforming apparatus was developed by us to replace the conventional procedure by a cathode rotary system. It was applied for coronal restorations to allow an electroforming directly on a working model. An experiment was successfully conducted to apply for a veneer crown on abutment tooth of upper central incisor on plaster model. The results were obtained as follows, 1. It was become possible to construct a metal framework by the electroforming. 2. Metal framework can be constructed on the same working model without a duplication of it. 3. The combined system for cathode rotation and liquid circulation could shorten the electroposition time, and allows a high current density extending to 50 A/dm2.
随着牙科技术的高度发展，技术变得更加多样化。从口腔修复学实践的角度来看，牙冠修复既要强调美观要求，也要注重功能需求，因此在常规操作中都应予以考虑。在制作牙冠修复体时，常用的材料有金属、陶瓷和树脂，而金属铸造法由于使用不同牙科材料的工艺复杂，存在各种缺点。因此，我们开发了一种电铸设备，通过阴极旋转系统来取代传统工艺。它被应用于牙冠修复，以便直接在工作模型上进行电铸。在石膏模型上对上颌中切牙的基牙成功进行了烤瓷冠电铸的实验。结果如下：1. 通过电铸可以构建金属框架。2. 无需复制工作模型即可在同一工作模型上构建金属框架。3. 阴极旋转和液体循环的组合系统可以缩短电沉积时间，并允许高达50 A/dm² 的高电流密度。
