成人安氏Ⅱ类患者上切牙唇侧牙槽骨厚度的CBCT研究  

Study on Labial Alveolar Bone Thickness of Adult Patients with Angle ClassⅡMalocclusion in Upper Incisors with Cone-beam CT

作　　者：王建新 刘敏 赵蕾[2] 管默 万芬 武涛 潘晓婧[1] WANG Jian-xin;LIU Min;ZHAO Lei;GUAN Mo;WAN Fen;WU Tao;PAN Xiao-jing(Department of Orthodontics,School of Stomatology,Lanzhou University,Lanzhou 730000,China;State Key Laboratory of Oral Diseases Department of Periodontics,West China Hospital of Stomatology,Sichuan University,Chengdu 610041,China)

机构地区：[1]兰州大学口腔医学院正畸科,甘肃兰州730000 [2]四川大学华西口腔医院牙周科,四川成都610041

出　　处：《口腔医学研究》2018年第10期1112-1116,共5页Journal of Oral Science Research

基　　金：口腔医学扶持基金(编号:432368);中央高校基本科研业务费(编号:862281)

摘　　要：目的:通过CBCT研究成人安氏Ⅱ类患者上切牙不同位点的唇侧牙槽骨厚度。方法:选取符合纳入标准的150例CBCT片,其中安氏Ⅱ1组、安氏Ⅱ2组、个别正常牙合组各50例,在牙体长轴矢状面上对上切牙唇侧牙槽骨厚度进行测量,然后计算唇侧牙槽骨占总牙槽骨厚度的百分比。结果:1)不同位点的唇侧牙槽骨厚度,个别正常牙合组最大,安氏Ⅱ1组次之,安氏Ⅱ2组最小;其中在根尖部位安氏Ⅱ1组最大,个别正常牙合组次之,安氏Ⅱ2组最小。2)根尖部唇侧牙槽骨厚度最大,根中部和根颈部较小,有统计学差异。结论:上切牙唇侧牙槽骨厚度与错牙合的类型有关,除中切牙根尖区外,其它部位唇侧牙槽骨厚度均小于2mm,唇侧牙槽骨占总牙槽骨厚度的百分比不足20%。Objective:To measure the alveolar bone thickness at different sites of upper incisor in adult patients of AngleⅡwith CBCT.Methods:According to inclusion criteria,150 adult patients were included:50 cases in AngleⅡ^1 group,50 cases in AngleⅡ^2 group,and 50 cases in normal occlusion group.The acquired CBCT image data were imported into the Invivo5.0 image processing software for 3D reconstruction.The thickness of alveolar bone on the maxillary labial side on the sagittal plane of the tooth body was measured,and the percentage of labial alveolar bone thickness to the total alveolar bone thickness was calculated.Results:1)The turn of thickness in labial alveolar bone at different sites was:individual normal occlusion group,AngleⅡ^1 group,and AngleⅡ^2 group.However,in the root tip,the turn was:AngleⅡ^1 group,individual normal occlusion group,and AngleⅡ^2.2)The turn of thickness of labial alveolar bone was:apical region,middle of the root,and the neck of the root(P<0.05).Conclusion:The labial alveolar bone thickness in upper incisors was related to the type of malocclusion.Except apical area,the thickness of labial alveolar bone of central incisor was less than 2 mm.The percentage of labial alveolar bone thickness to total alveolar bone thickness was less than 20%.

关 键 词：人安氏Ⅱ类错[牙合] 上切牙 牙槽骨厚度 CBCT 

分 类 号：R783.5[医药卫生—口腔医学]