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Updated: Mar 28, 2026

A Postoperative Evaluation Guideline for Computer-Assisted Reconstruction of the Mandible
Published on: January 28, 2020
Quantitative Mandibular Angle Ostectomy Facilitated by Oscillating-Blade Saw With Scalable Guide
Sae Bin Lee1, Hyun Jin Min, Dong Kyun Rah
1*Unique Aesthetic Plastic Surgery Clinic †Department of Plastic and Reconstructive Surgery, Institute for Human Tissue Restoration, Yonsei University College of Medicine ‡Department of Otorhinolaryngology-Head and Neck Surgery, Chung-Ang University College of Medicine, Seoul, Republic of Korea.
A new oscillating-blade saw with a scalable guide improves mandibular angle ostectomy precision. This technique offers satisfactory aesthetic outcomes with fewer complications for prominent jaw contours.
Area of Science:
- Plastic Surgery
- Oral and Maxillofacial Surgery
- Surgical Innovation
Background:
- Existing mandibular angle ostectomy techniques lack precision in surgical line delineation.
- Overly prominent bony contours of the jaw require effective surgical correction methods.
Purpose of the Study:
- To introduce a novel method for precise surgical line marking in mandibular angle ostectomy.
- To evaluate the efficacy and safety of a custom oscillating-blade saw for this procedure.
Main Methods:
- A custom oscillating-blade saw with a scalable guide was used in 75 patients for quantitative mandibular angle ostectomy.
- Corticectomy for frontal appearance improvement utilized a reciprocating saw.
- Patient satisfaction and symmetry were assessed via questionnaire 6 months post-surgery.
Main Results:
- High patient satisfaction (score 4.9) and symmetry (score 4.7) were reported.
- No major complications, including nerve injury or fracture, occurred.
Conclusions:
- The oscillating-blade saw with a scalable guide enables precise and reproducible mandibular angle ostectomy.
- This technique leads to satisfactory aesthetic results with a reduced complication rate.

