344例错畸形分类研究

Classification Research for 344 Cases with Malocclusion

目的：分析口腔正畸患者错畸形类型及年龄构成。方法：对2008-2012年在内蒙古医科大学附属医院口腔正畸科矫治的344例口腔错畸形患者的临床资料进行回顾性分析，按Angle分类法统计错畸形类型及年龄构成。结果：错类型为AngleΙ类43.90%、AngleⅡ类31.69%、AngleⅢ类24.41%；年龄构成为10~15岁59.59%、16~20岁21.80%、21~25岁14.25%、26~30岁2.33%、30岁以上2.03%；男女比例1∶1.41；2008年6月-2010年6月收治的病例占38.95%，2010年7月-2012年6月收治的病例占61.05%。结论：要求正畸治疗患者的错类型以AngleⅠ类、AngleⅡ类最多，年龄构成以10~15岁为主，正畸患者有明显上升趋势。

Objective：To analyze malocclusion types and age distri-bution of orthodontic patients.Method：344 malocclusion patients from 2008 to 2012 were retrospectively studied,their malocclusion types by Angle classification and age distribution were statistically analyzed.Result：The malocclusion types were Angle classⅠwith 43.90%,classⅡwith 31.69%,classⅢwith 24.41%;the age distribution were 10-15 years group with 59.59%,16-20 years group with 21.80%,21-25 years group with 14.25%,26-30 years group with 2.33%,and over 30 years group with 2.03%.Women patients were 1.41 times more than men patients.Of the total 344 patients,38.95%were admitted for treatment during June 2008 to June 2010,61.05%were during July 2010 to June 2012.Conclusion：The main malocclusion types are Angle classⅠand classⅡ,the main patients are 10-15 years old.The demands for orthodontic operation are increasing.