对颌骨内埋伏牙的定位及了解其解剖结构的毗邻关系是正畸矫治和口腔颌面外科手术治疗的基础.锥形束CT(cone-beam computed tomography,CBCT)具有高清晰度、高分辨率,可为颌骨内埋伏牙提供精确的动态三维图像及六面三维视角定位,获得直观的埋伏牙断层影像.作者采用CBCT对19例20颗埋伏牙进行定位分析,并对其作了分类,现报告如下.%Con-beam CT(CBCT) was applied to localize 20 embedded teeth in jaw bones in 19 cases.The localization of the teeth was classified as high ( 11 ) , horizontal(5 ) and backward- down ( 3 ) positions.
展开▼
