Orthognathic surgery, which involve osteotomy and repositioning of the maxillomandibular complex, has recently emerged as a crucial method of correcting dentofacial deformities. The optimal placement of the maxillomandibular complex holds utmost significance during orthognathic surgery because it directly affects the surgical outcome. To accurately achieve the ideal position of the maxillomandibular complex, with the rapid advancements in digital surgery and 3D-printing technology, orthognathic surgery has entered an era of "Precision Surgery" from the pervious "Empirical Surgery." This article provides comprehensive insights into our extensive research and exploration of the treatment modality known as "precision orthognathic surgery" over the years. We also present the technical system and application in"Ortho+X" treatment modality to offer valuable references and assistance to our colleagues in the field.
近年来，通过截骨和移动牙-颌骨复合体的正颌外科手术已成为治疗牙颌面畸形的重要方法。上、下颌骨最终的空间位置将直接影响正颌手术的治疗效果，也是治疗的关键步骤。为了精准实现理想的颌骨空间位置，在数字化外科和3D打印技术迅猛发展的推动下，正颌外科已经从过去的“经验外科”时代进入“精准外科”的新时代。本文详细阐述了多年来我们在“精准正颌外科”治疗模式方面的探索和研究，介绍其技术体系及在“Ortho+X”治疗模式中的应用，旨在为广大同行提供参考和帮助。.
Keywords: 3D-printed osteotomy guide; 3D-printed patient-specific implants; dentofacial deformities; precision orthognathic surgery; virtual surgical plan.