锥形束计算机断层扫描（CBCT）在Le Fort I型截骨术中的应用
[Application of the cone beam computed tomography (CBCT) in Le Fort I osteotomy].
作者信息
Hou Min, Zhang Lan-cheng, Zhang Xi-zhong, Song Da-li, Du Qing-xiang, Liu Chun-ming
机构信息
Department of Orthognathic Surgery, Stomatological Hospital Affiliated to Nankai University, Tianjin Stomatological Hospital, Tianjin 300041, China.
出版信息
Zhonghua Zheng Xing Wai Ke Za Zhi. 2011 Jul;27(4):246-9.
OBJECTIVE
To improve the accuracy and safety of the Le Fort I osteotomy.
METHODS
Eighty-four patients underwent CBCT scan before maxillary orthognathic surgery. The anatomic structures of maxilla were marked and measured.
RESULTS
In 84 cases, there were 3 cases with severe hypoplasia of maxillary sinus, 11 cases with impacted third molar, 8 cases with separation in maxillary sinus, 4 cases with the deviation of nasal septum, and 3 cases with cysts in maxillary sinus. Form CBCT images, the position of the pterygopalatine canal, the thickness of maxillary wall, hidden lesion of maxillary sinus, the location of Impacted molar, the deviation of nasal septum, and other anatomic structure could be accurately localized. CBCT could provide sufficient and valuable information in diagnosis and design for Le Fort I osteotomy.
CONCLUSIONS
CBCT imaging technology could provide precise anatomic images for Le Fort I osteotomy. It improves the accuracy and safety of the Le Fort I osteotomy.
目的
提高Le Fort I型截骨术的准确性和安全性。
方法
84例患者在进行上颌正颌手术前接受了CBCT扫描。对上颌的解剖结构进行标记和测量。
结果
84例中，上颌窦严重发育不全3例，阻生第三磨牙11例，上颌窦分隔8例，鼻中隔偏曲4例，上颌窦囊肿3例。通过CBCT图像，翼腭管的位置、上颌壁的厚度、上颌窦隐匿性病变、阻生磨牙的位置、鼻中隔偏曲等解剖结构均可准确显示。CBCT可为Le Fort I型截骨术的诊断和设计提供充分且有价值的信息。
结论
CBCT成像技术可为Le Fort I型截骨术提供精确的解剖图像。提高了Le Fort I型截骨术的准确性和安全性。
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