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Updated: Jun 3, 2026

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Digital Hybrid Model Preparation for Virtual Planning of Reconstructive Dentoalveolar Surgical Procedures
Published on: August 5, 2021
Preliminary study of virtual orthognathic surgical simulation and training
Hongbo Yu1, Jie Cheng, Andrew Hua-an Cheng
1Department of Oral & Maxillofacial Surgery, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
The Journal of Craniofacial Surgery
|March 16, 2011
Summary
A novel tree-structure architectonic model simplifies virtual orthognathic surgery simulation. This approach enhances immersion and tactile feedback for realistic surgical training and planning.
Area of Science:
- Medical Simulation
- Computer-Aided Surgery
- Orthognathic Surgery
Background:
- Virtual surgical simulation offers a cost-effective alternative for training and planning.
- Current systems require sophisticated algorithms and high-end hardware.
- Simplifying virtual surgical simulation is crucial for wider adoption.
Purpose of the Study:
- To explore the feasibility of a tree-structure architectonic model.
- To simplify and realize virtual orthognathic surgical simulation.
- To reduce computational complexity in virtual surgical planning.
Main Methods:
- Four patients with skeletal malocclusions underwent 3D model reconstruction from CT scans.
- Virtual orthognathic procedures (Le Fort I, sagittal split ramus osteotomy, genioplasty) were performed on the 3D model.
- A tree-structure architectonic model was implemented for immersive virtual surgery with tactile feedback.
Main Results:
- The tree-structure model simplified virtual osteotomy algorithms and reduced computational complexity.
- The system provided a strong sense of immersion with real-time visual and tactile feedback.
- Operators could interact with and manipulate virtual bony segments effectively.
Conclusions:
- The tree-structure architectonic model is an effective alternative for virtual orthognathic surgical simulation.
- The developed system enables realistic surgical simulation and training with high immersion.
- This 3D virtual system is suitable for orthognathic surgical planning, simulation, and training.

