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目的 :得出壮族正常牙合青少年牙弓宽度、长度、相关指数比率、腭盖高度等的均值及标准差 ,从而分析壮族人的牙弓形态特征。方法 :测量广西壮族正常牙合青少年的 10 0副牙牙合模型 (男女各 5 0副 )得出相关数据。测量结果进行统计学处理并与国内外的相关资料进行对比研究。结果 :壮族青少年牙弓宽度和长度除长度在切牙区外均男性大于女性 (P <0 .0 5 ) ,腭盖高度男性大于女性 (P <0 .0 1) ,相关比率男女无差异 (P >0 .0 5 )。壮族人的牙弓形态无论男女前部均较平 ,牙弓长度相对短 ,总体成方圆型。结论 :壮族青少年的牙弓形态有其独特特征 ,临床矫治时应考虑本地区的特点。
OBJECTIVE: To draw the mean and standard deviation of arch width, length, relative index ratio, height of palatal cap, etc. of normal occlusion adolescents in Zhuang nationality to analyze the dental arch morphological characteristics. Methods: The data of 10 0 occlusal occlusion models (50 male and female) of Guangxi Zhuang normal occlusion adolescents were obtained. The measurement results were statistically processed and compared with the relevant data at home and abroad. Results: The width and length of dental arch of Zhuang youth were higher than that of female (P <0. 05) except the length of incisal area, and the height of palatal cover was higher than that of female (P <0.01) P> 0 .0 5). Zhuang people dental arch both male and female front are flat, relatively short arch length, the overall into a square-shaped. Conclusion: The arch shape of Zhuang nationality adolescents has its unique characteristics. The characteristics of the region should be considered in the clinical treatment.