词The rate of malocclusion in normal students was 62. 3%, ankyloglossia 6. 6% , and abnormity labial frenum 4. 8%.
健康组
畸形患病率62.3％,舌系带过短率6.6％,唇系带异常率4.8％。
The rate of malocclusion in normal students was 62. 3%, ankyloglossia 6. 6% , and abnormity labial frenum 4. 8%.
健康组畸形患病率62.3％,舌系带过短率6.6％,唇系带异常率4.8％。
Objective:To investigate the relationship among the congenital hypodontia of mandibular incisor and malocclusion and the variation of medial distal dimension of mandibular canine.
探讨下颌恒切牙先天缺失情况,与牙颌畸形的关系以及下尖牙
远中径的变
。
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