恒牙初期学生错畸形患病率调查与分析

Investigation and analysis of prevalence rate of students malocclusion in early permanent dentition

目的调查分析邢台地区恒牙初期学生错耠畸形患病率。方法制作调查表,采取随机抽样方法。由邢台市眼科医院正畸科专业人员对753例样本进行错袷畸形调查。结果邢台地区恒牙初期学生的患病率为67.59%;各类错畸形中,安氏Ⅰ类患病率最高,安氏Ⅱ其次,安氏Ⅲ类再次之;牙列拥挤为最常见错临床表现,患病率达41.97%。错畸形患者矫治率仅7.07%。结论邢台地区恒牙初期学生的错畸形患病率较高,但矫治率较低。

Objective the early permanent dentition To investigate and analysis the prevalent even symptoms of malocclusion in in the area of Xingtai. Methods Making the survey and taking the method of cluster sampling. The investigation on 753 cases was carried out by orthodontic specialists from Xingtai eye hospital. Results The prevalence of malocclusion among the early permanent dentition in the area of Xingtai was 67.59%. the Angle class I malocclusion was the highest prevalence in the three types of malocclusions. Crowding, which prevalence was 41.97%, was the most common clinical manifestations. Patients who had been received orthodontic treatment were only 7.07% of the total cases. Conclusion The prevalence of malocclusion among students in the early permanent dentition was higher, but the rate of correction was lower.