吉林通化地区朝鲜族中学生前磨牙畸形中央尖调查  

Investigation of odontomes on premolars in the Korean Chinese high school students in Tonghua city

作　　者：马龙[1] 宋长健[2] 徐迈[1] 吴方丽[1] 

机构地区：[1]第二炮兵总医院口腔科 [2]解放军第五三一医院口腔科

出　　处：《口腔颌面修复学杂志》2012年第3期179-181,共3页Chinese Journal of Prosthodontics

摘　　要：目的:揭示畸形中央尖在朝鲜族人前磨牙中的分布特点及规律。方法:对吉林通化市部分朝鲜族中学生人群(3819人)进行口腔检查,记录畸形中央尖在前磨牙上的发生情况。率的比较采用卡方检验,双侧同名牙间的相关性分析采用Kendall检验,计算相关系数tau及双侧共同发生率。结果:畸形中央尖的个体发生率为3.82%,女性组(4.47%)显著高于男性组(3.15%)(P<0.05)。畸形中央尖在下颌第一磨牙的构成比(1.45%)高于上颌第一前磨牙(0.41%),在下颌第二前磨牙(1.88%)要高于上颌第一前磨牙(0.56%),差异有统计学意义(P<0.001)。畸形中央尖在上颌第一、二前磨牙及下颌第一、二前磨牙的双侧共同发生率依次为93.75%(15/16)、55.17%(16/29)、63.24%(43/68)和47.42%(46/97),双侧相关系数tau依次为0.968、0.710、0.771和0.640。结论:掌握掌畸形中央尖的发生规律具有重要的临床价值及人类学意义。Objective： To investigate occurrence pattern of odontomes in a Korean Chinese population.Methods： Direct intraoral examination was conducted on 3819 Korean Chinese high school students in Tonghua city.The occurrences of odontomes on premolars were recorded.The trait frequencies were compared by using Chi-square tests.Correlations between bilateral antimeric teeth were evaluated by Kendall tau rank correlation coefficient,and the concurrence rates were calculated.Results： The prevalence of odontomes in the population involved in this study was 3.82%.The female group（4.47%） was significantly（P 〈 0.05） higher than the male group（3.15%）.The frequencies on mandibular first and second premolars were significantly（P 〈 0.001） higher than maxillary first and second premolars,respectively（1.45% vs.0.41%,and 1.88% vs.0.56%）.The tau values were 0.968,0.710,0.771 and 0.640,and the concurrence rates were 93.75%（15/16）,55.17%（16/29）,63.24%（43/68） and 47.42%（46/97） for the maxillary first,second,and mandibular first and second premolars,respectively.Conclusions： Understanding the occurrence pattern of odontomes is of great clinical significance and anthropological significance.

关 键 词：畸形中央尖 前磨牙 

分 类 号：G637[文化科学—教育学] R78[医药卫生—口腔医学]