A Novel 3D-Printed Bilateral Sagittal Split Osteotomy Simulation Tool for Resident Education.

Area of Science:

• Oral and Maxillofacial Surgery
• Surgical Simulation
• Medical Education

Background:

• Bilateral sagittal split osteotomy (BSSO) is associated with a high risk of neurosensory injury.
• Surgical simulation can potentially improve surgeon confidence, technical skills, and intraoperative performance.
• Assessing the validity of novel simulation models is crucial for effective surgical training.

Purpose of the Study:

• To evaluate the face and content validity of a novel three-dimensional (3D) printed mandible model with a soft tissue component for BSSO simulation.
• To compare trainee confidence and performance using the novel model versus a commercially available model.
• To determine the cost-effectiveness of the new simulation model.

Main Methods:

• A novel 3D printed mandible model with a soft tissue component was developed.
• Surgical trainees performed simulated BSSO procedures on the novel model and a commercial model.
• Pre- and post-simulation surveys assessed trainee confidence and model validity.
• Statistical analysis compared confidence changes and model preferences.

Main Results:

• The novel simulation model, including a reusable soft tissue component, cost $43 to produce.
• Twelve residents participated, reporting a significant increase in confidence across all domains (P<0.01).
• The model, its soft tissue component, and the visualized inferior alveolar nerve were rated as realistic by most participants, who preferred it over the commercial model.

Conclusions:

• The novel 3D printed mandible model with soft tissue and inferior alveolar nerve visualization is a cost-effective, high-fidelity simulation platform.
• The model demonstrates strong face and content validity for BSSO surgical simulation.
• This tool has the potential to enhance surgical training and improve patient outcomes by increasing surgeon proficiency.