Combined orthodontic and Orthognathic treatment with 3D-printing technique offers a precise outcome: A case report of two years Followup

Abstract The aim of this study is to show that OFA and Computer-aided surgical simulation (CASS) combined 3D-printing technique offered more chances for doctors to obey the principle of Precision Medicine in the Combined Orthodontic and Orthognathic Treatment (COOT). Precision Medicine and evidence-based clinical treatment approach are proposed worldwide in medical science nowadays. However, there is still a debate between “surgery first” (SF) and orthodontic first approach (OFA). We analyzed the trend of different approaches in COOT, which was a team work and required mainly the collaboration of orthodontist and orthognathic surgeon. Our protocol was presurgical orthodontic decompensation, CASS combined 3D-printing technique, orthognathic surgery, and postsurgical orthodontic adjustment (to treat a 20-year-old patient, with skeletal Class III relationship and asymmetric mandible). With the CASS combined 3D-Printing Technique, the CASS, 3D-printed surgery guiding splint and stable splint offered COOT an accurate guide. The results exhibited that the patient had a perfect maxillary and mandible relationship and a significant improvement in her profile. With the development of 3D-technique, CASS could offer COOT (OFA) a precision process, offer the patient an esthetic and stable result and evoke people avoiding immersing in saving time in COOT (SF).