中国临床医学影像杂志2013，Vol.24Issue(4)：239-241,3.
锥形束CT在诊断上颌埋伏牙冠根成角中的应用
Application of cone beam computed tomography in the assessment of the crown-root angulation of impacted maxillary tooth
田玉楼 1刘芳 1朴美玲 1王晶 1赵修良 1刘明1
作者信息
摘要
Abstract
Objective: To evaluate the clinical application of cone beam computed tomography (CBCT) in diagnosing the crown-root angulation of impacted maxillary tooth. Methods: Thirteen patients with maxillary impacted tooth, whose crown-root angle could not be judged by panoramic radiographs and occlusal films, were scanned by CBCT and then the images were taken three-dimensional reconstruction to locate the impacted tooth, detect the presence of crown-root angulation, measure the crown-root angle and ratio. Then the results of measurement were analyzed and discussed. Results: Among the 13 maxillary impacted tooth cases, 10 were diagnosed as crown-root angulation, of whom the angles of 6 cases were between 120°~150°, those in 4 cases were between 150°~180°, 90°~120°, 60°~90° respectively; besides, the crown-root ratio was between 1:1.5~1:1 in 7 cases, 1:1~1:0.5 in 5 cases and 1:2~1:1.5 in 1 case. Conclusion: CBCT can definitely diagnose the crown-root angle of impacted maxillary tooth, which provides important clinical significance for making treatment plans.关键词
牙,阻生/体层摄影术,X线计算机Key words
Tooth, impacted/ Tomography, x—ray computed分类
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田玉楼,刘芳,朴美玲,王晶,赵修良,刘明..锥形束CT在诊断上颌埋伏牙冠根成角中的应用[J].中国临床医学影像杂志,2013,24(4):239-241,3.
