成人安氏Ⅰ类错正畸前、后髁突形态的变化  

Condylar morphological changes before and after orthodontic treatment for angle Class Ⅰ malocclusion adult patients

作　　者：史秋涛 卢海平[1] 肖芳[1] 蒋镇[1] 柳毅[1] 谷志远[1] 

机构地区：[1]浙江中医药大学口腔医学院,浙江中医药大学附属口腔门诊部,浙江杭州310053

出　　处：《上海口腔医学》2016年第3期301-305,共5页Shanghai Journal of Stomatology

基　　金：国家自然科学基金(81170979)

摘　　要：目的:运用锥形束CT(CBCT)分析成人安氏Ⅰ类错正畸治疗前、后髁突形态在三维方向上的变化。方法 :选取25例临床无口腔颞下颌关节紊乱症状的成人安氏Ⅰ类错患者(男5例,女20例)正畸治疗前、后双侧颞下颌关节的CBCT影像,应用Mimics10.01软件对CBCT影像进行三维重建,测量正畸治疗前、后髁突的高度、最大轴位平面和最大矢状位平面的面积及骨密度,三维髁突及上部三维髁突的体积及骨密度,采用SPSS19.0软件包对数据进行统计学分析。结果:最大轴位平面和最大矢状位平面的面积和骨密度值较治疗前显著降低(P<0.05);三维髁突体积及骨密度和上部三维髁突骨密度较治疗前显著降低(P<0.05)。结论:成人安氏Ⅰ类错正畸治疗前、后髁突发生适应性的改建。PURPOSE： To evaluate the condylar morphological changes in adult Angle Class I malocclusionpatients before and after orthodontic treatment using a cone-beam CT（CBCT）. METHODS： Images of 25 adult Angle Class I patients（5 males, 20 females） who had no temporomandibular joint disorder symptom were involved in this study, and Mimics 10.01 software was used to reconstruct the three-dimensional condyle and measure the height of condyle, the area and bone density of the largest cross sectional plane and sagittal plane, and the volume and bone density of the whole and upper three-dimensional condyle before and after orthodontic treatment. Paired t test was used for comparison between pre- and post-treatment condylar metric analysis with SPSS 19.0 software package. RESULTS： After treatment, the area and bone density of the largest cross sectional plane and sagittal plane were reduced significantly（ P〈0.05）. The volume and bone density of the whole three-dimensional condyle and bone density of the upper three-dimensional condyle were reduced significantly（P〈0.05）. CONCLUSIONS： Adaptive bone remodeling of the condyle may occur due to alternation of occlusion by orthodontic treatment in adult Angle Class I malocclusion patients.

关 键 词：锥形束CT 安氏Ⅰ类错 髁突 

分 类 号：R783.5[医药卫生—口腔医学]