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[Study on the simulation in planning for orthognathic surgery by using a personal computer].

K Terada1, I Saitoh, K Hanada

  • 1Department of Orthodontics, Niigata University School of Dentistry.

Nihon Kyosei Shika Gakkai Zasshi = the Journal of Japan Orthodontic Society
|August 1, 1990
PubMed
Summary

This study developed 3D simulation software for orthognathic surgery planning. The software accurately predicts mandibular position and form after surgery, aiding treatment in complex cases.

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Area of Science:

  • Computer-aided surgery
  • Medical simulation
  • Orthognathic surgery planning

Context:

  • Orthognathic surgery requires precise pre-operative planning.
  • Traditional planning methods can be limited in visualizing complex 3D anatomical changes.
  • Microcomputer systems offer potential for advanced surgical simulation.

Purpose:

  • To develop and evaluate 3D simulation programs for orthognathic surgery.
  • To utilize a microcomputer system for data input, 3D reconstruction, simulation, and graphic display.
  • To predict post-operative mandibular position and form in asymmetrical cases.

Summary:

  • The study details a four-step 3D simulation process: data input from CT scans, 3D reconstruction, surgical simulation (cutting and movement), and 3D graphic display.

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  • The simulation was applied to an asymmetrical patient case involving sagittal splitting osteotomy and body ostectomy.
  • The software generated pre- and post-simulation 3D graphics of the mandible, demonstrating predicted outcomes.

    • Impact:

    • The developed 3D simulation programs can significantly enhance treatment planning for orthognathic surgery.
    • Provides accurate visualization of surgical outcomes, particularly for complex asymmetrical prognathic cases.
    • Facilitates better understanding and communication of surgical plans between clinicians and patients.