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假牙的适合与否,与模型是否正确有很大关系,要取得正确的模型,应根据不同情况、选择适当的印模材料。现在被广范采用的印模材料有印模胶和弹性胶两种。印模胶用于极简单的印模以及齿列整齐的对(牙合)模,其优点是方便经济,缺点是对于部分托牙和倒凹的托牙,用其取模、往往是不太准确,因而影响了修复体的质量,增加托牙修改的次数,甚至有时要返工重做,这是我们已往曾遇到过的,用弹性胶取印
False teeth fit or not, and the model is correct or not have a great relationship, to obtain the correct model, should be based on different circumstances, select the appropriate impression material. Now widely used impression material impression mold and elastic two. Impression mold for very simple impressions and dentition neat pairs of (occlusal) mold, the advantage of convenient economy, the disadvantage is that for some dentures and denture denture, with its mold, often not too Accurate, thus affecting the quality of the prosthesis, increasing the number of dentures to modify, and sometimes even rework to rework, which we have encountered in the past, the use of flexible plastic printing