摘要
目的 探讨安氏Ⅱ类错牙合颅底结构特征与颌面部形态之间关系。方法 将 5 7例 12～ 16岁女性患者分成两组 ,安氏Ⅱ类及安氏Ⅰ类 ,拍摄矫治前头颅正侧位片 ,描画在硫酸纸上 ,输入计算机进行测量、统计。结果 安氏Ⅱ类错牙合颅底角明显大于安氏Ⅰ类 ,下颌骨有向前向上旋转趋势 ;颅底角与关节角、下颌角呈负相关性 ;颅底长 ,Ⅱ类与Ⅰ类无明显差别 ,其中后颅底与颌面部关系密切 ,后颅底长与腭骨长、上面高呈正相关性 ,与下齿槽基骨高度呈负相关性。
Objective To investigate the relationships between cranial base structure and maxillofacial morphology of angle class Ⅱ malocclusion.Methods 57 female patients aging form 12 to 16,were divided into 2 groups,namely Angle Class Ⅱ and Ⅰ.All the patient took X-ray radiographs.The cephalographs were traced,then digitized and statisticed using a computer.Results The cranial base angle was negatively correlated with articular angle,gonion angle,and positively correlated with SN-mandible angle.The mandible of class Ⅱ would rotate upward and forward when comparad with that of class Ⅰ.Cranial base length was not significantly different between Class Ⅱ and Class Ⅰ.Posterior cranial base was in close relation with maxillofacial morphology.Posterior cranial base length was positively correlated with palatal length,upper facial heigth,and negatively correlated with symphysis height.Conclusion The structure of cranial base was in close relation with the maxilloficial morphology.
出处
《现代口腔医学杂志》
CAS
CSCD
2001年第1期46-48,共3页
Journal of Modern Stomatology
