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总义齿修复要想取得预期效果,必须有一付能真实反映正常情况下口腔各部分自然状况的模型及正确的颌关系。常规制作总义齿印模有两个弱点:1.肌功能修整是在患者处于被动状态完成的,很难真实反映无牙颌口腔的自然状况。2.颌关系是通过蜡(牙合)托获得的,而蜡与粘膜的附着力、粘着力都很差,固位力很不稳定极易脱落,患者为防止蜡(牙合)托脱落一直处于紧张状态,无法很好配合术者操作,因此,很难获得满意的效果。其次,蜡基托软化点低、强度差,经口内反复咬合极易变形,
To achieve the desired effect of total denture repair, there must be a pair of models that can truly reflect the natural conditions of various parts of the oral cavity under normal circumstances and the correct jaw relationship. Conventional general denture impressions have two weaknesses: 1. Muscular function trimming is done in the passive state of patients, it is difficult to truly reflect the edentulous mouth of the natural condition. 2. The relationship between the jaw is obtained through the wax (occlusal) care, and wax and mucosal adhesion, adhesion are poor, the retention is very unstable and easy to fall off, the patient in order to prevent wax (occlusion) care off In a state of tension, can not be well coordinated with the operation of the surgeon, therefore, it is difficult to obtain satisfactory results. Second, the wax base softening point is low, the intensity is poor, the mouth repeatedly bite easily deformed,