The rate of malocclusion in normal students was . %, ankyloglossia . % , and abnormity labial frenum . 8%.
The rate of malocclusion in normal students was . %, ankyloglossia . % , and abnormity labial frenum . 8%.
健康组错畸形患病率. ％,舌系带过短率.％,唇系带异常率.8％。
The rate of malocclusion in normal students was . %, ankyloglossia . % , and abnormity labial frenum . 8%.
健康组错畸形患病率. ％,舌系带过短率.％,唇系带异常率.8％。