DEVEROLMENT OF THE MEASURING METHOD FOR CROWN FORM ON CAD-CAM PROTHETICS

点击翻译按钮获取中文摘要

We examined the followings :1, The development of tooth crown form (preparation tooth, neighbor tooth, opposite tooth)2, The pilot study for automatically composite resin manufacturing.It was tried to transplanting laser-focus measurement system and 5 axis control displacement gyration table(Kohzu, SA04-03) to our original modeling machine (Roland, CAMM3 PNC-300).In order that weight limit of a measure table and a gyration structure were high prices, attached liaison probe decided to be used as it is. Moreover, in order that built-in controller did transplanting by H8-3039F one board microcomputers(Hitachi), since necessity (piracy of potential) of built in ROM contrary assemblage fitted, a motor driver board of controller built in was done architecture-experimental manufacture newly and it had it to change a schedule and a motor driver board of controller built in substituted on PIX-4 and within it was made.Liaison probe could secure the accuracy that a response enough by active piezo-sensor. By this, measure of tooth crown form came to be able to be performed by equipment on the market by 1 board permutation chisel. It was examined the Adhesion of alumina ceramics and composite resin as a goal formerly at non-metal crown which used a pure aluminal core frame. Tribochemical silica coating (Rocatec, ESPE) was suggested for good bonding strength of alumina and composite.A research result was announced as investigation more than and it was collected as a research result written report.In the future, we will develop the automatically manufacturing system for non-metal crown and fixed denture which consists of hybrid composite and alumna ceramics.