摘要
目的:了解新疆不同民族青年下颌智齿萌出及阻生情况。 方法:分别测量汉、维吾尔、哈萨克、锡伯族共 190 7人一侧下颌体长度及第二磨牙后间隙的距离 ,并调查其下颌智齿阻生率。结果:不同民族青年下颌智齿阻生率不同 ,汉族青年第二磨牙后间隙的距离与各少数民族间的差异均具有统计学意义 (P <0 .0 5 ) ,汉族青年一侧下颌骨长度小于各少数民族一侧下颌骨长度。 结论 :下颌智齿萌出与下颌骨的长度有一定关系 ,特别与第二磨牙后间隙的距离密切相关 ;
Objective: To determine the eruption of the third mandibular molar of 4 nationalities of Xinjiang. Methods: 1907 persons from 4 different nationalities were selected to measure the length of mandibule and the retromolar space and the incidence of impaction. Results: The incidence of impaction of the third mandibular molar were quite different in 4 nationalities (P<0.05). The length of the madible of Hans were shorter than that of other three nationalities, while only those of Hans and Kazak showed significant difference (P<0.05). The length of the retromolar space of Hans were significantly shorter than that of other three nationalities (P<0.01). Conclusion: The eruption of the third mandibular molar is closely related with the length of mandibule and the retromolar space. The incidence of impaction of Hans are significantly higher than that of other three nationalities.
出处
《新疆医科大学学报》
CAS
2003年第4期380-381,共2页
Journal of Xinjiang Medical University
关键词
下颌智齿
阻生
萌出
the third mandibular molar
impaction
eruption
