Abstract:

Objective·To establish a standardized procedure of digital orthognathic surgery and to evaluate its effects. Methods·788 patients with dentofacial deformities who received digital orthognathic surgery between 2014 and 2015 were included in this study. Patients were treated based on the procedure of clinical data collection, data processing, computer assisted surgery planning and simulation, 3D printing and occlusal splint processing, orthognathic surgery, surgery evaluation and feedback, and comprehensive verification and recording and the effects of this procedure was evaluated. Results·All 788 patients had satisfactory surgical outcomes.  All preoperative, intraoperative, postoperative, and follow up data and surgeons’ evaluation and feedback were completely recorded. No major mistakes such as occlusal splint lost or mismatch were found. The surgeons, related medical staff, and staff formulating the procedure cooperated smoothly and were satisfied with this procedure. Human errors such as improper adjustment of the occlusal splints or leave them without disinfection were promptly found and dealt with. Conclusion·A standardized digital orthognathic surgery procedure should include clinical data collection and processing, computer assisted surgery planning and simulation, 3D printing and occlusal splint processing, orthognathic surgery, evaluation and feedback, and comprehensive verification and recording, which can effectively eliminate human errors, improve the satisfaction of patients, ensure the accuracy of occlusal splint, enhance efficiency and efficacy, and promote the development and advance of orthognathic surgery.

Key words: digital, orthognathic surgery, procedure； precision surgery