山东省泰安地区错[牙合]畸形患者Bolton指数的测量分析研究

Analysis on Bolton index among different malocclusions patients of Taian area in Shandong province

目的:通过对山东省泰安地区各类恒牙错[牙合]畸形患者Bolton指数的分析,了解该地错[牙合]畸形的分布特点,为临床治疗提供参考。方法:选取2009-03~2013-12在本院口腔科就诊的210例错[牙合]畸形患者的石膏模型,按照安氏分类法分为3组,每组70例,通过石膏模型测量分析Bolton指数。结果:不同错[牙合]畸形前牙Bolton比及全牙Bolton比无统计学差异。前牙Bolton比及全牙Bolton比在性别间无统计学差异,按照国人Bolton指数均值±2个标准差为标准,泰安地区各类错[牙合]前牙Bolton比不协调的发生率为18.57%,全牙Bolton比不协调发生率为18.10%,不同类型错[牙合]间无统计学差异(P>0.05)。结论:国人正常牙合的Bolton指数同样适合于泰安地区的各类型错[牙合]患者,在制定矫治方案时要充分考虑到Bolton指数。

Objective:To investigate the Bolton index of different malocclusions patients and to acquaint its abnormal distribution ratio in Taian area.Methods:A total of 210 dental cases,which were seleted in our hospital from March 2009 to October 2013,were measured using a Vernier calipe.Bolton indexes were measured and analyzed according to angle`s classification of malocclusion.Results:The Bolton anterior and overall ratios for different malocclusions of Taian area were no significant different.Chinese normal occlusion`s Bolton index±2standard deviations were set as the standard,the anterior and overall tooth size discrepancies frequency ratios of the Taian area were 18.57% and 18.10% respectively.There were no significant differences in anterior and overall tooth size discrepancies frequency in the different malocclusions(P>0.05).Conclusion:The Chinese standard Bolton index can be also used to malocclusion patients in Taian area.Bolton index is different among different malocclusion patients and Bolton index analysis should be taken into consideration before treatment.