Orthognathic Surgery Techniques and Patient Outcomes

Orthognathic surgery corrects skeletal discrepancies of the jaws to restore function, facial balance and esthetics. Techniques span traditional two-dimensional cephalometric planning to advanced three-dimensional simulation, employing either single-jaw or bimaxillary osteotomies, often with rigid fixation to maintain stability. Virtual planning platforms integrate cone beam computed tomography scans with digital dental models to generate surgical splints via CAD/CAM, enhancing intraoperative accuracy. Machine-learning algorithms now promise automated diagnostics and personalised treatment simulation. Patient outcomes are assessed across skeletal stability, occlusal precision, complication rates and quality of life. Surgical movement hierarchy studies demonstrate variable long-term stability depending on the vector of displacement, while complication analyses underscore the importance of meticulous preoperative planning and multidisciplinary collaboration. Patient-reported outcome measures, such as quality-of-life questionnaires, reveal significant functional and psychosocial improvements over six months postoperatively. Ongoing innovations aim to refine positional accuracy to within submillimetre thresholds and reduce intraoperative risk, thereby optimising both clinical efficiency and patient satisfaction.

Research from Nature Portfolio

Recent studies have demonstrated that three-dimensional surgical simulation substantially modifies conventional treatment plans, particularly improving mediolateral and rotational corrections in cases of facial asymmetry. The accuracy of these simulations has been validated with postoperative assessments showing mean deviations below one millimetre, confirming the reliability of virtual planning when translated into the operating theatre. In parallel, machine-learning frameworks have been developed to automate diagnosis from 3D facial scans, achieving diagnostic accuracies exceeding 95% and simulating surgical outcomes with one-millimetre precision. Such tools propose to streamline workflow by reducing manual input and facilitating patient communication about expected results.

Orthognathic Surgery Techniques and Patient Outcomes publication trend

The graph below shows the total number of articles in orthognathic surgery techniques and patient outcomes across all publications each year (not limited to Nature Index journals).

Technical terms

Orthognathic surgery: Surgical correction of jaw deformities to achieve functional occlusion and facial harmony.

Bimaxillary surgery: Osteotomies performed on both the maxilla and mandible in a single operative session.

Cone beam computed tomography (CBCT): Three-dimensional imaging modality used for precise skeletal and dental assessment.

CAD/CAM splints: Computer-designed and manufactured surgical guides used to transfer surgical plans to the patient.

3D surgical simulation: Virtual planning technique integrating imaging and digital modelling to predict surgical movements and outcomes.

References

1. A New 3D Tool for Assessing the Accuracy of Bimaxillary Surgery: The OrthoGnathicAnalyser. PLOS ONE (2016).
2. The hierarchy of stability and predictability in orthognathic surgery with rigid fixation: an update and extension. Head & Face Medicine (2007).
3. Preoperative, intraoperative, and postoperative complications in orthognathic surgery: a systematic review. Clinical Oral Investigations (2015).
4. Accuracy evaluation of CAD/CAM generated splints in orthognathic surgery: a cadaveric study. Head & Face Medicine (2015).
5. Three-dimensional surgical simulation improves the planning for correction of facial prognathism and asymmetry: A qualitative and quantitative study. Scientific Reports (2017).
6. Impact of Orthognathic Surgery on Quality of Life in Patients with Dentofacial Deformities. International Journal of Dentistry (2017).
7. A machine learning framework for automated diagnosis and computer-assisted planning in plastic and reconstructive surgery. Scientific Reports (2019).