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Updated: Jul 3, 2026

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Treatment of Facial Deformities using 3D Planning and Printing of Patient-Specific Implants
Published on: May 23, 2020
Three-dimensional analysis system for orthognathic surgery patients with jaw deformities
Masahiko Terajima1, Natsumi Yanagita, Kanako Ozeki
1Department of Orthodontics, Faculty of Dentistry, Kyushu University, Fukuoka, Japan. teraji@d7.dion.ne.jp
Summary
This study introduces a new 3D analysis method to accurately assess maxillofacial morphology before and after orthognathic surgery, improving treatment evaluation.
Area of Science:
- Maxillofacial Surgery
- Medical Imaging
- Quantitative Anatomy
Background:
- Traditional 2D cephalograms and facial photographs have limitations in accurately assessing maxillofacial morphology due to distortion and enlargement.
- Accurate assessment of maxillofacial skeletal and soft-tissue morphology is crucial for effective treatment planning and evaluation.
Purpose of the Study:
- To introduce a novel method for comparing three-dimensional (3D) standard values of maxillofacial skeletal and facial soft-tissue morphology.
- To evaluate the utility of this 3D analysis in assessing patients before and after orthognathic surgery.
Main Methods:
- Calculated normative 3D standard values for maxillofacial skeletal and facial soft-tissue morphology from a cohort of normal women.
- Compared the pre- and postoperative morphology of a patient undergoing orthognathic surgery against these normative 3D data.
Main Results:
- The 3D analysis demonstrated clinical value in evaluating patients' maxillofacial morphology changes.
- This method allows for quantitative assessment of the facial skeleton and soft tissues.
Conclusions:
- The quantitative 3D assessment effectively evaluates displacement and rotation of the facial skeleton and soft tissues.
- This novel 3D method is suitable for routine clinical applications in orthognathic surgery evaluation.

