Chen Yuxue, Duan Peijia, Meng Yukun, Chen Yangxi
West China College of Stomatology, Sichuan University, Sichuan, PR China.
Am J Orthod Dentofacial Orthop. 2006 Jul;130(1):112-6. doi: 10.1016/j.ajodo.2006.02.024.
The aim of this investigation was to explore the validity of 3-dimensional (3D) spiral computed tomographic (CT) images to examine impacted teeth before surgical or orthodontic treatment.
Two patients with impacted teeth were examined with both spiral CT and traditional radiographs.
3D CT images clearly showed the impacted teeth, including crown, root neck, and root bifurcation; the labial or palatal location; and the eruption orientation and relationship to the dentition.
3D CT images obtained with 3D surface reconstruction of spiral CT images is accurate and effective for examining impacted teeth before orthodontic treatment.
本研究的目的是探讨三维（3D）螺旋计算机断层扫描（CT）图像在外科手术或正畸治疗前检查阻生牙的有效性。
对两名阻生牙患者进行了螺旋CT和传统X线片检查。
三维CT图像清晰显示了阻生牙，包括牙冠、牙根颈部和根分叉；唇侧或腭侧位置；萌出方向以及与牙列的关系。
通过螺旋CT图像的三维表面重建获得的三维CT图像在正畸治疗前检查阻生牙方面准确有效。
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