In labial and palatal direction, labial bone bridge was more than palatal bone bridge (P<0.001).
唇腭向上唇侧的骨桥数多于腭侧骨桥数（P<0.001）；
Results We gained the basic data and find a measuring method of incisive papilla and palatal wrinkle.
结果得到切牙乳突与腭皱形态的测量方法和基础数据。
The central zone of tensile stress moved to the frenal notch from the pre palate and palatal side of the denture incisor of the base;
拉应力集中区由基托前腭部、前牙腭侧移动到唇系带切迹区；
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