下颌阻生第三磨牙的危害性分析  

Analysis of the harmfulness of impacted mandibular third molar

作　　者：李岩 陈硕 李玉 董洪宇 

机构地区：[1]齐齐哈尔医学院口腔医学院,黑龙江齐齐哈尔161006 [2]齐齐哈尔医学院附属第一医院口腔科,黑龙江齐齐哈尔161041

出　　处：《牙体牙髓牙周病学杂志》2018年第2期103-105,共3页Chinese Journal of Conservative Dentistry

基　　金：黑龙江省大学生创新创业训练计划项目(201711230039)

摘　　要：目的:探讨下颌阻生第三磨牙的危害性。方法:纳入下颌阻生第三磨牙患者110例共110个患牙,拍摄全口曲面断层片检查第三磨牙阻生方向、邻牙状态及牙槽骨吸收的情况。结果:110例患者中下颌第三磨牙远中阻生5例(45.5%)、近中阻生43例(39.1%)、水平阻生62例(56.4%);邻牙龋损68例(61.8%),牙周疾病51例(46.4%);相邻牙槽骨吸收37例(33.6%),下颌前牙排列拥挤错位69例(62.7%),咬合关系错乱而造成颞下颌关节疾病17例(15.5%)。结论:下颌异位萌出的第三磨牙对邻牙、下颌前牙、牙槽骨及颞下颌关节均有影响。AIM : To analyse the harmfulness of impacted mandibular third mola. METHODS: 110 patients with impacted mandibular third molar were examined by pantomography,the state of the adjacent teeth and the absorption of alveolar bone were observed and analyzed. RESULTS: Distoangular,mesioangular and horizontal impaction were found in 5( 45. 5%),43( 39. 1%) and 62( 56. 4%) of the 110 cases. Tooth decay found was in 68 cases( 61. 8%) in the adjacent teeth,periodontal diseases in 51 cases( 46. 4%),adjacent tooth alveolar bone absorption in37 cases( 33. 6%),crowding and malposition in 69 cases( 62. 7%),temporomandibular joint disorder in 17 cases( 15. 5%). CONCLUSION: Mandibular Impacted third molar may may be a factor for some diseases of the adjacent teeth,mandibular anterior teeth,adjacent teeth alveolar bone and temporomandibular joint.

关 键 词：下颌阻生第三磨牙 曲面断层摄影 临床分析 

分 类 号：R782.1[医药卫生—口腔医学]