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目的探讨牙科CT在埋伏齿拔除中的应用价值。方法 40例62颗埋伏齿患者,全部拍摄根尖片、全景曲面断层片及牙科CT容积扫描。制定手术路径和手术方案,并与手术所见进行回顾性对照分析和验证。结果通过牙科CT定位方法所取得的术前判断与术中所见完全一致,符合率100%。术后所有患者刀口均Ⅰ期愈合,无感染及邻牙损伤等并发症发生。结论在颌骨埋伏齿的拔除路径和手术方案制定中,术前影像学检查应首选X线根尖片和全景曲面断层片,对形态模糊,均无法正确判读的埋伏牙,利用牙科CT容积扫描,具有较高的临床价值。
Objective To investigate the value of dental CT in the removal of ambush teeth. Methods Totally 62 patients with ambush teeth were photographed in 40 cases, including panoramic radiographs, panoramic tomographic slices and dental CT volume scanning. Develop surgical pathways and surgical protocols, and retrospectively analyze and validate the surgical findings. Results The preoperative judgment obtained by the dental CT localization method was exactly the same as the intraoperative findings, with a rate of 100%. All patients had first-degree incision healing, no infection and adjacent tooth injury and other complications. Conclusions In the development of extraction pathways and surgical plans of mandibular implants, preoperative radiographic examination should be the first choice of X-ray and panoramic surface tomography. For ambush teeth with ambiguous morphology that can not be correctly interpreted, dental CT volume scanning , With high clinical value.