Computer-assisted orthognathic surgery: feasibility study using multiple CAD/CAM surgical splints
Computer-assisted orthognathic surgery: feasibility study using multiple CAD/CAM surgical splints
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DOI：
10.1016/j.oooo.2011.11.009
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发表时间：
2012-05-01
影响因子：
2.9
通讯作者：
Zoeller, Joachim E.
中科院分区：
文献类型：
--
作者：
Zinser, Max J.;Mischkowski, Robert A.;Zoeller, Joachim E.
目标。我们提出了一种虚拟规划方案，其中包括一种专利的3外科夹板技术，用于正颌手术。本研究的目的是为了证明该方法在体内的可行性和有效性。材料与方法。该方案包括(1)计算机断层扫描（CT）或锥形束计算机断层扫描（CBCT）颌面成像，关节牙研究模型的光学扫描，分割和融合；(2)诊断和虚拟治疗计划；(3)外科夹板的计算机辅助设计与制造（CAD/CAM）；(4)术中手术转移。通过将该方案应用于8例接受双颌截骨治疗的成人III类患者，验证了该技术的准确性。利用CT/CBCT数据集的图像融合，通过分析硬、软组织地标相对于参考平面的测量值，将虚拟平面与术后手术结果进行比较。虚拟规划方法对上颌骨的位置具有临床可接受的精度(
Objective. We present a virtual planning protocol incorporating a patented 3-surgical splint technique for orthognathic surgery. The purpose of this investigation was to demonstrate the feasibility and validity of the method in vivo.Materials and Methods. The protocol consisted of (1) computed tomography (CT) or cone-beam computed tomography (CBCT) maxillofacial imaging, optical scan of articulated dental study models, segmentation, and fusion; (2) diagnosis and virtual treatment planning; (3) computed-assisted design and manufacture (CAD/CAM) of the surgical splints; and (4) intraoperative surgical transfer. Validation of the accuracy of the technique was investigated by applying the protocol to 8 adult class III patients treated with bimaxillary osteotomies. The virtual plan was compared with the postoperative surgical result using image fusion of CT/CBCT dataset by analysis of measurements between hard and soft tissue landmarks relative to reference planes.Results. The virtual planning approach showed clinically acceptable precision for the position of the maxilla (