Abstract
Orthognathic surgery has traditionally been performed using stone model surgery. This process, with its multitude of laboratory steps, may be fraught with inaccuracies. Small errors in this process can get magnified downstream, resulting in altered maxillary and ultimately mandibular position and outcomes. With the advent of new technology, patient-specific maxillary cutting guides with predictive plate holes and 3D-printed plates have allowed surgeons to position the maxilla solely based on the patient-specific guide and plate. This eliminates the need for vertical reference markings, intermediate splints, and positioning the maxilla relative to the mandible. As this technology is relatively new, the goal of this study is to evaluate the accuracy of patient-specific surgical guides and plates in maxillary positioning at our institution.
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