不同年龄段正畸初诊患者颞下颌关节结构分析

Analysis of temporomandibular joint structural abnormalities in orthodontic patients of different age stage

目的:探讨不同年龄阶段正畸初诊患者颞下颌关节结构的异常情况。方法:选取301例患者为受试对象,其中男性97例,女性204例,按年龄分成5组:10-34岁,10-14岁组,15-19岁组,20-24岁组,25-29岁组,30-34岁组,常规拍摄头颅定位正侧位片,口内全景X线片及颞下颌关节开闭口斜矢状位磁共振,并对关节结构情况进行观察,其结果采用SPSS 17.0进行统计学分析。结果:301例患者中,10-14岁组58例,正常35例,异常23例,异常率39.66%;15-19岁组77例,正常20例,异常57例,异常率74.03%;20-24岁组92例,正常22例,异常70例,异常率76.09%;25-29岁组57例,正常20例,异常37例,异常率64.91%;30-34岁组17例,正常5例,异常12例,异常率70.59%;结论:成年人颞下颌关节结构异常发生率显著高于10-14岁年龄组,15-19岁为高发阶段,20岁以后发病率基本稳定。

Objective： o analyze TMJ structure problems in orthodontic patients of dif erent age stage. Methods： 301 orthodontic patients were randomly selected in our department during the recent 2 years, including 97 males and 204 females, aged from 10 to 34 years old. Divided by age into 5 teams, 10-14 years team, 15-19 years team, 20-24 years team, 25-29 years team, and 30-34 years team. X-ray and MRI on TMJ of both sides were used to analyze TMJ structure problems. The results were analyzed with SPSS 17.0. Results： Of all 301 patients, 58 patients were in the 10-14 years team, 35 normal and 23 abnormal, abnormal ratio was 39.66%. 77 patients were in the 15-19 years team, 20 normal and 57 abnormal, abnormal ratio was 74.03%. 92 patients were in the 20-24 years team, 22 normal and 70 abnormal, abnormal ratio was 76.09%. 57 patients were in the 25-29 years team, 20 normal and 37 abnormal, abnormal ratio was 64.91%. 17 patients were in the 30-34 years team, 5 normal and 12 abnormal, abnormal ratio was 70.59%. Conclusion： TMJ structure abnormal ratio of the adult patients was signii cantly higher than that of the 10-14 years team. The range of 15-19 years was the high-risk stage and after the age of 20, the incidence of the disease is basically stable.