青少年安氏I、Ⅱ类错畸形患者髁突位置的比较  

Comparison of condylar position between Angle Class I and Class Ⅱ malocclusion in teenagers

作　　者：顾永佳 陆胜男 高美琴 顾鑫宇 石慧 马俊青[2] 

机构地区：[1]南通市口腔医院正畸科,江苏南通226001 [2]南京医科大学口腔附属口腔医院正畸科,江苏南京221000

出　　处：《上海口腔医学》2016年第6期694-696,共3页Shanghai Journal of Stomatology

基　　金：江苏省口腔疾病研究重点实验室资助项目(JSKLOD-KF-1508)

摘　　要：目的 :应用锥体束CT(CBCT)测量青少年安氏I、Ⅱ类错畸形患者髁突在关节窝中的位置,比较其间的差异。方法:选择符合实验设计的安氏I、Ⅱ类患者共90例,其中I类30例,Ⅱ类1分类30例,2分类亦为30例。研究对象摄取CBCT,使用Exam Vision软件进行关节间隙的测量,测量出髁突位于关节窝的位置,利用SPSS17.0软件包对结果进行统计学分析。结果:髁突位于关节窝的位置,安氏Ⅱ类患者较安氏I类患者前间隙大,后间隙小;安氏Ⅱ类2分类患者较1分类患者上间隙、前间隙明显增大,后间隙缩小,差异具有显著性(P<0.05)。安氏Ⅱ类患者髁突长度显著小于安氏I类患者,安氏Ⅱ类2分类者尤其短(P<0.05)。结论:青少年安氏Ⅱ类患者较I类患者髁突位置明显靠后下且髁突长度变短,Ⅱ类2分类患者尤为明显,应尽早进行正畸治疗,引导髁突回归正常位置。PURPOSE： To analyze and compare the difference of condylar position between Angle Class I and Class lI malocclusion patients using cone-beam CT （CBCT）. METHODS： Thirty Class I patients, 30 Class Ⅱdivision 1 patients and 30 Class Ⅱ division 2 patients were selected in this study. Each patient underwent CBCT. The images in the oblique position perpendicular to the condyloid process were reconstructed by Examvision software. The joint space was measured by Exam Vision software. The data were processed with SPSS17.0 software package. RFSULTS： The upper joint space was larger in Class Ⅱ, the posterior joint space was smaller in Class Ⅱ patients; and in Class Ⅱdivision 1 patients, both of the upper and anterior joint spaces were larger than in Class Ⅱ division 2 patients ,the differences were significant （P〈 0.05）. The length of condyle was longer in Class I patients than in Class Ⅱ patients. CONCLUSIONS： The condylar position in Class Ⅱ division 2 patients was lower and further backward. The length of condyle is shortest in Class Ⅱdivision 2 patients.

关 键 词：颞下颌关节 安氏Ⅱ类错畸形 锥形束CT 

分 类 号：R783.5[医药卫生—口腔医学]