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目的测量125名江苏地区正常人群的模型,建立江苏地区正常牙及牙列指数的平均值。方法选取正常模型125副(男61副,女64副),用电子游标卡尺测量牙冠宽度、牙弓宽度及长度、腭盖高度,对测量结果进行统计分析。结果江苏地区正常人群的牙冠宽度、牙弓宽度及长度、腭盖高度均为男性大于女性,Bolton指数及Pont指数无性别差异。上下颌6个前牙牙冠宽度总和、全部牙冠宽度总和具有相关性,上颌中切牙与上颌前段牙弓宽度之间亦存在相关性,且建立了直线回归方程。结论牙冠形态、牙列指数存在种族、地区和性别的差异,临床上应参照本民族、本地区的标准。
Objective To measure the population of 125 normal people in Jiangsu Province and establish the average value of normal fangs and dentition index in Jiangsu Province. Methods Totally 125 normal male models (61 males and 64 females) were selected. The crown width, arch width and length, palatal cap height were measured by electronic vernier calipers, and the results were statistically analyzed. Results The coronal width, dental arch width and length, palatal cover height of the normal crowd in Jiangsu Province were all higher than those in the male, and Bolton index and Pont index had no gender difference. The total crown width of the 6 anterior teeth in the upper and lower jaws was correlated with the total width of the crowns. There was also a correlation between the maxillary central incisor and the width of the maxillary anterior dental arch, and a linear regression equation was established. Conclusion There are differences in ethnicity, region and gender in the form of dental crown and dentition index. Clinicians should refer to the standards of their own ethnic groups and local regions.