骨性安氏Ⅲ类错患者不同垂直骨面型下颌联合高度差异的临床研究  

Research of symphysis height among Class III malocclusion patients with different facial vertical skeletal patterns

作　　者：牛磊[1] 郑颖[1] 刘奕[1] 

机构地区：[1]中国医科大学附属口腔医院奉天门诊,辽宁省口腔疾病转化医学研究中心,辽宁沈阳110013

出　　处：《中国美容医学》2015年第8期54-56,共3页Chinese Journal of Aesthetic Medicine

基　　金：辽宁省科学技术计划项目(2013225090)

摘　　要：目的:比较不同的垂直骨面型的骨性安氏Ⅲ类错患者下颌联合高度的差异。方法:在未做过正畸治疗的115例患者的头颅侧位片上测量下中切牙-下颌平面角(incisor mandibular plane angle,IMPA)以及下颌联合高度(symphysis height,LH),比较不同垂直骨面型的骨性安氏Ⅲ患者的下颌牙槽代偿和下颌联合高度的差异。结果:下颌联合高度和下中切牙-下颌平面角在不同垂直骨面型的安氏Ⅲ类患者中存在明显差异。在骨性安氏Ⅲ错中,下颌联合高度(LH)与下颌平面角呈正相关,下中切牙-下颌平面角(IMPA)与下颌平面角呈负相关。结论:骨性安氏Ⅲ类错患者长面型的趋势导致下颌联合变长,下前牙代偿性舌倾随着长面型的趋势加重。Objective To compare the symphysis height among Class III malocclusion patients with different facial vertical skeletal patterns. Methods Incisor mandibular plane angle （IMPA） and symphysis height （LH） were measured in 115 lateral cephalometric x-rays of adult patients without prior orthodontic treatment. Results Incisor mandibular plane angle （IMPA） and symphysis height （LH）values showed significant differences between Class III malocclusion patients with different facial vertical skeletal patterns.Variations in the mandibular plane have a negative correlation with IMPA and a positive correlation with LH. Conclusion An increased trend of long-faced in Class III malocclusion led to variable-length of symphysis height and more lingual inclination of mandibular incisor.

关 键 词：垂直骨面型 骨性安氏Ⅲ类 下颌联合 下中切牙-下颌平面角 

分 类 号：R783.5[医药卫生—口腔医学]