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Updated: May 11, 2026
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Digital Hybrid Model Preparation for Virtual Planning of Reconstructive Dentoalveolar Surgical Procedures
Published on: August 5, 2021
Craniomaxillofacial surgery planning based on 3D models derived from Cone-Beam CT data
Nicolai Adolphs1, Weichen Liu, Erwin Keeve
1Klinik für Mund-, Kiefer- und Gesichtschirurgie, Zentrum für rekonstruktive und plastisch-ästhetische Gesichtschirurgie and.
Summary
Cone-Beam CT (CBCT) enables the creation of accurate 3D surgical models for maxillofacial corrections. This imaging technique improves preoperative planning and patient comfort, offering a viable alternative to traditional methods.
Area of Science:
- Oral and Maxillofacial Surgery
- Biomedical Engineering
- Radiology
Background:
- High-resolution multi-slice computed tomography (MSCT) is the standard for maxillofacial imaging.
- Cone-Beam CT (CBCT) offers specialized maxillofacial imaging capabilities.
- 3D models are crucial for planning complex maxillofacial corrections.
Observation:
- CBCT datasets were used to create 3D models via selective laser sintering.
- Manual thresholding was employed for hard tissue segmentation.
- Landmark measurements were taken on virtual and physical models for accuracy.
Findings:
- CBCT datasets are suitable for fabricating patient-specific 3D surgical models.
- The fabricated 3D models accurately represented individual patient anatomy.
- No significant discrepancies were found between virtual and physical models.
Implications:
- CBCT-derived 3D models facilitate precise maxillofacial surgical planning and execution.
- This in-house imaging approach streamlines the preoperative workflow.
- Enhanced patient comfort is achieved through improved planning and a fast-track concept.
