双颌前突患者治疗前后上下唇正面形态的变化  

Changes of Lip Morphology from Frontal View in Orthodontic Patients with Bimaxillary Protrusion

作　　者：潘月 杨安迪 雷浪[1] PAN Yue;YANG Andi;LEI Lang(Department of Orthodontics,Nanjing Stomatological Hospital,Medical School of Nanjing University,Nanjing 210008,China)

机构地区：[1]南京大学医学院附属口腔医院南京市口腔医院正畸科

出　　处：《口腔医学研究》2019年第12期1162-1165,共4页Journal of Oral Science Research

基　　金：江苏省自然科学基金(编号:BK20171122);南京市医学科技发展项目(编号:QRX17081)

摘　　要：目的:双颌前突是一类临床常见的严重影响患者面型的错牙合畸形,上下唇形态的异常是患者寻求正畸治疗的主要动因。本研究拟分析双颌前突患者矫治前后的上下唇正面形态的变化。方法:双颌前突组纳入39例双颌前突的女性患者,平均年龄(23.1±4.1)岁,拔除4颗第一前磨牙后,采用直丝弓矫治技术进行正畸治疗;对照组为19例安氏Ⅰ类个别正常牙合的直面型女性志愿者,平均年龄(26.0±2.6)岁。拍摄治疗前后的面部照片、口内像以及头颅侧位片。使用Image pro-Plus 6.0软件,测量正面照片上下唇红高度以及面积,头影测量分析上下切牙内收量和倾斜度的改变,并进一步分析上下前牙内收量与上下唇红高度以及面积变化的相关性。结果:正畸治疗前双颌前突患者显示出异常的正面唇形态,上下唇面积及唇红高度显著大于对照组(P<0.05);正畸治疗后,双颌前突患者上下唇面积及上下唇红高度显著减少(P<0.05);与对照组相比,双颌前突患者治疗后上唇面积以及上下唇红高度没有显著差异,然而下唇面积仍大于对照组(P<0.05)。双颌前突患者治疗后牙齿突度显著减小,切牙内收量与上下唇侧缘的高度的减少量具有弱相关性。结论:正畸治疗显著改善了双颌前突患者上下唇正面形态。Objective:To analyze the changes in the frontal morphology of lips during orthodontic treatment.Methods:Thirty-nine female patients(23.1±4.1)years who were diagnosed with bimaxillary protrusion were enrolled in the bimaxillary protrusion group.After the removal of the four first premolars,orthodontic treatment was performed with straight wire arch techniques.The control group consisted of 19 female volunteers(26.0±2.6)years with class I individual normal occlusion.Facial photographs,intraoral images,and lateral cephalograms were taken before and after active orthodontic treatment in the resting position.Image pro-Plus 6.0 software was used to measure the vermilion height and lip area in the frontal photographs.Then incisors retraction and inclination were measured and the correlation of between incisors retraction and lip morphology were explored.Results:The vermilion height and lip area before orthodontic treatment in the bimaxillary protrusion group were significantly greater than the control group,and vermilion height as well as lip area was significantly reduced after orthodontic treatment.No difference in the upper lip area and vermilion height was observed between the patients with bimaxillary protrusions after treatment and the control group,whereas the area of the lower lip in bimaxillary patients after treatment was significantly larger than that of the control group.Orthodontic treatment significantly reduced the tooth inclination of patients with bimaxillary protrusion,and the incisor retraction was weakly correlated with the reduction of the vermilion height in the lateral medium.Conclusion:Lip morphology from the front view was significantly improved in bimaxillary protrusive patients by orthodontic treatment.

关 键 词：双颌前突 正畸 唇红高度 唇面积 

分 类 号：R78[医药卫生—口腔医学]