一、概述要做好一副全口、半口烤瓷牙，关键是一个牙颌的问题。口腔修复是以牙颌为主要对象的，只有对牙颌的缺失和损伤作出正确的分析诊断，才能恢复良好的功能和形态[1]。正中位即牙尖交错位，是上下牙最广泛接触时下颌位置[2]因此在临床修复时应该尽量保持患者的正常生理颌 First, an overview To make a full mouth, half porcelain teeth, the key is a denture problem. Dental prosthesis is the main object of the dentition, and only the right jaw jaw loss and damage to make the correct analysis and diagnosis, to restore good function and morphology [1]. The median is the cusp position, is the most extensive contact with the lower jaw when the jaw position [2] Therefore, clinical repair should try to keep the patient's normal physiological jaw