不同矢状骨面型患者颞下颌关节三维骨性结构的锥形束CT研究  

Evaluation of three-dimensional osseous structure of temporomandibular joint according to sagittal skeletal patterns:A cone-beam computed tomography study

作　　者：王博 常新[2] WANG Bo;CHANG Xin(Department of Orthodontics,Foshan Women and Children Hospital,Foshan 528000,China)

机构地区：[1]佛山市妇幼保健院正畸科,广东佛山528000 [2]大连医科大学附属第二医院正畸科,辽宁大连116000

出　　处：《口腔医学》2024年第9期685-691,共7页Stomatology

摘　　要：目的研究不同矢状骨面型患者颞下颌关节形态结构和空间位置的差异。方法纳入68例年轻成人错牙合畸形患者,根据矢状骨面型分类分为骨性Ⅰ类组、骨性Ⅱ类组和骨性Ⅲ类组。应用InVivo 5软件对所有患者的锥形束CT影像进行三维重建,并对与髁突、关节窝和关节结节相关的17个研究项目进行测量分析。结果不同矢状骨面型患者左右侧关节的形态结构和空间位置差异无统计学意义(P>0.05)。与骨性Ⅰ类和骨性Ⅲ类患者相比,骨性Ⅱ类患者的髁突长轴径更小,关节结节后斜面更陡峭,髁突、关节窝和关节结节的空间位置更靠后。与骨性Ⅰ类和骨性Ⅱ类患者相比,骨性Ⅲ类患者髁突水平角更小,关节结节高度更低。结论不同矢状骨面型患者的髁突形态结构、关节结节形态结构以及髁突、关节窝和关节结节的空间位置均存在明显差异。Objective To investigate the differences in the morphological structure and spatial position of the temporomandibular joint among patients with different sagittal skeletal patterns.Methods A total of 68 young adults with malocclusion were enrolled and allocated into skeletal ClassⅠgroup,skeletal ClassⅡgroup and skeletal ClassⅢgroup according to sagittal skeletal patterns.InVivo 5 software was used to reconstruct the cone-beam CT images of all patients,and 17 research items related to condyle,glenoid fossa and articular eminence were measured and analyzed.Results There was no significant difference in the morphological structure and spatial position of bilateral temporomandibular joints in patients regardless of sagittal skeletal patterns(P<0.05).Compared with skeletal ClassⅠand skeletal ClassⅢpatients,skeletal ClassⅡpatients had smaller mediolateral diameter of condyle,steeper posterior slope of articular eminence,and more posterior position of condyle,articular eminence and glenoid fossa.Compared with skeletal ClassⅠand skeletal ClassⅡpatients,skeletal ClassⅢpatients had smaller condyle axial angle and lower height of articular eminence.Conclusion There are significant differences in condyle morphological structure,articular eminence morphological structure,and spatial position of condyle,articular eminence and glenoid fossa among patients with different sagittal skeletal patterns.

关 键 词：矢状骨面型 颞下颌关节 锥形束CT 骨性结构 

分 类 号：R783.5[医药卫生—口腔医学]