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Mandibular midline osteotomy for correction of bimaxillary transverse discrepancy: a technical note
Mrunalini Ramanathan1, Rie Sonoyama-Osako1, Yukiho Shimamura1
1Department of Oral and Maxillofacial Surgery, Shimane University Faculty of Medicine, Izumo, Japan.
Summary
This study introduces new surgical techniques for correcting transverse width deficiencies in the mandible, a common issue in dentofacial deformities. These methods improve surgical outcomes and stability for patients needing mandibular widening and genioplasty.
Area of Science:
- Oral and Maxillofacial Surgery
- Orthodontics
- Dentofacial Deformities
Background:
- Transverse width discrepancies are frequent in dentofacial deformities, often requiring surgical intervention.
- Mandibular transverse deficiency, particularly after presurgical orthodontics, presents a significant clinical challenge.
- Existing surgical methods may need refinement for optimal transverse correction.
Purpose of the Study:
- To present novel osteotomy techniques for enhancing mandibular transverse width correction.
- To describe simultaneous genioplasty procedures applicable with mandibular widening.
- To outline key management principles for transversely deficient mandibles.
Main Methods:
- Development and application of novel osteotomy techniques for mandibular widening.
- Integration of simultaneous genioplasty with mandibular transverse correction.
- Analysis of factors influencing outcome and stability in surgical correction.
Main Results:
- Novel techniques were designed to improve mandibular transverse width correction.
- Genioplasty and mandibular midline arch widening can be performed simultaneously.
- Gonial angle reduction may be necessary for significant widening requirements.
Conclusions:
- Evidence-based modifications to surgical procedures can aid precise correction of complex dentofacial deformities.
- Further research is needed to determine the maximum stable mandibular widening.
- The presented techniques offer potential for improved management of transversely deficient mandibles.
