计算机辅助设计与3D打印导板在下颌角成形术中的应用

发布时间：2018-11-20 20:39

【摘要】：目的介绍并探讨计算机辅助设计(CAD)与3D打印技术在下颌角成形术中的应用价值,以期优化手术模式与获得最佳整形美容效果。方法对来自四川大学华西口腔医院颌面外科与华中科技大学同济医院口腔科就诊的16例方脸患者术前拍摄头颅CBCT并进行三维数据重建,通过计算机辅助设计确定个性化下颌角截骨范围,用3D打印技术制作下颌骨模型,并制作实施准确手术的导板。在手术中用此导板引导进行下颌骨的"V-line"弧线截骨,部分患者同时结合颧骨颧弓与颏部的面部轮廓整形手术,术后效果通过3D曲线函数来评估。结果所有患者术后均对自己面型满意,术后下颌骨两侧几乎完全对称,X线显示截骨线流畅平滑,完全达到术前设计要求。结论计算机辅助设计与3D打印技术的有机结合为下颌角成形术的准确性、安全性与可预见性提供了新策略与新方法。数字化下颌角成形术的应用不仅提高了美容效果,而且能减少手术时间,降低手术难度并降低损伤重要神经血管的风险,值得临床推广应用。
[Abstract]:Objective to introduce and discuss the application value of computer aided design (CAD) and 3D printing in mandibular angle angioplasty in order to optimize the operation mode and obtain the best cosmetic effect. Methods Sixteen patients with square face from maxillofacial surgery of Western China Stomatology Hospital and Department of Stomatology of Huazhong University of Science and Technology, Sichuan University, were taken head CBCT before operation and 3D data were reconstructed. The range of individualized mandibular angle osteotomy was determined by computer aided design, the mandibular model was made by 3D printing technology, and the guide plate was made to perform accurate operation. The mandibular "V-line" arc osteotomy was performed under the guide of the guide plate during the operation. Some of the patients combined the zygomatic arch and the chin with facial contour plastic surgery. The postoperative effect was evaluated by 3D curve function. Results all the patients were satisfied with their facial shape after operation. The bilateral mandible was almost symmetrical after operation. X-ray showed smooth and smooth osteotomy line, which fully met the requirements of preoperative design. Conclusion the combination of CAD and 3D printing provides a new strategy and method for the accuracy, safety and predictability of mandibular angle angioplasty. The application of digital mandibular angle angioplasty can not only improve the cosmetic effect, but also reduce the operation time, reduce the difficulty of surgery and reduce the risk of injury of important nerve and blood vessel, so it is worth popularizing in clinic.
【作者单位】：华中科技大学同济医学院附属同济医院口腔科;四川大学华西口腔医院口腔颌面外科;
【基金】：国家自然科学基金青年科学基金资助项目(No.81500830)
【分类号】：R782.2;TP391.7

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