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Related Experiment Video

Updated: Jul 24, 2025

Digital Hybrid Model Preparation for Virtual Planning of Reconstructive Dentoalveolar Surgical Procedures
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A novel simulation module for segmental mandibulectomy and mandible reconstruction using 3D models.

Aarti Agarwal1, Lauren Schlegel2, Michele Fiorella1

  • 1Thomas Jefferson University Hospital, Department of Otolaryngology- Head & Neck Surgery, Philadelphia, PA, USA.

American Journal of Otolaryngology
|July 5, 2023
PubMed
Summary

This study developed a 3D printed model simulation for surgical training in mandibular resection. The simulation significantly improved trainees' ability to plan accurate osteotomies and boosted confidence in surgical planning.

Keywords:
3D printingMandibulectomyMedical educationOtolaryngologySurgical education

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Area of Science:

  • Head and Neck Surgery
  • Surgical Education
  • 3D Printing Technology

Background:

  • Mandibular resection and reconstruction are complex head and neck surgeries.
  • Adequate surgical margins are crucial for successful outcomes.
  • Traditional training relies heavily on real-case experience, limiting structured learning.

Purpose of the Study:

  • To develop and evaluate a novel simulation module for mandibular resection and reconstruction training.
  • To assess the impact of 3D printed models on surgical planning accuracy.
  • To improve trainee confidence and technical skills in head and neck procedures.

Main Methods:

  • Developed 3D printed (3DP) mandibular models from patient imaging data with ameloblastoma.
  • Otolaryngology trainees planned osteotomies before and after interacting with 3DP models.
  • Assessed osteotomy margin adequacy and collected participant feedback via surveys.

Main Results:

  • Surgical planning accuracy for clear margins improved from 65.3% to 92.3% after using 3DP models (p=0.001).
  • 92% of participants found the simulation beneficial for planning and technical training.
  • A majority reported increased confidence in conceptualizing lesion boundaries and ablation abilities.

Conclusions:

  • A structured mandibulectomy simulation using 3D printed models effectively enhances trainee experience in segmental mandible resection.
  • This simulation represents a novel approach to improving surgical training quality in head and neck procedures.
  • 3D printed models offer a valuable tool for pre-operative planning and skill development.