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Bilateral Scissor Bite Treated by Rapid Mandibular Expansion Following Corticotomy
Teruo Sakamoto1, Kotaro Hayakawa, Takenobu Ishii
1Department of Orthodontics, Tokyo Dental College.
The Bulletin of Tokyo Dental College
|January 5, 2017
Summary
This study demonstrates that rapid maxillary expansion following corticotomy effectively treats bilateral posterior scissor bite in young adults. The procedure achieved stable occlusion and improved facial profiles without adverse effects.
Area of Science:
- Orthodontics
- Oral and Maxillofacial Surgery
Background:
- Scissor bite involves buccal displacement of maxillary posterior teeth.
- Skeletal maxillary prognathism can contribute to posterior scissor bite.
- Treatment options for adult scissor bite are often limited.
Observation:
- A 17-year-old male presented with skeletal maxillary prognathism and bilateral posterior scissor bite.
- A bonded rapid expansion appliance was used following corticotomy.
- The appliance increased the inter-arch distance between canines and first molars.
Findings:
- Successful correction of bilateral posterior scissor bite was achieved.
- Appropriate occlusion and lateral profile were obtained and maintained post-treatment.
- No adverse effects such as gingival recession or root caries were observed.
Implications:
- Mandibular lateral expansion following corticotomy is a viable treatment for young adults with narrow mandibular arches and scissor bite.
- This technique offers a stable and effective solution for correcting complex malocclusions.
- Further research can explore long-term stability and applicability in diverse patient populations.
