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Am J Orthod Dentofacial Orthop. 2015 Jul;148(1):138-53. doi: 10.1016/j.ajodo.2014.08.023.

Corticotomy-assisted rapid maxillary expansion: A novel approach with a 3-year follow-up.

Author information

1
Private practice, Casablanca, Morocco. Electronic address: dr.echchadimehdi@gmail.com.
2
Private practice, Casablanca, Morocco.
3
Specialist in orthodontics, Department of Orthodontics and Dentofacial Orthopaedics, Faculty of Dentistry, University of Hassan II, Casablanca, Morocco.
4
Associate professor and chair, Department of Orthodontics, College of Dentistry, Kyung Hee University, Seoul, Korea.

Abstract

This case report introduces a new approach of corticotomy-assisted rapid maxillary expansion for treating a severe maxillary transverse discrepancy in a skeletally mature patient. This approach uses piezo-bone perforation in conjunction with a fixed appliance and an expander. This report describes the treatment of a 14-year-old girl with a severe maxillary transverse discrepancy. She had a straight profile, severe maxillary crowding, a maxillomandibular transverse differential index of 9 mm, and a Class I skeletal relationship. The treatment protocol consisted of surgical intervention with piezo-bone perforation and active orthodontic therapy. Immediately after the piezo-bone perforation on the lateral buccal side of the maxilla, active orthodontic therapy was started with activation of an expander. The expander was reactivated weekly. Treatment duration was 5 months 2 weeks. Proper overbite and overjet, facial balance, and occlusion were achieved. The treatment outcome was stable at the 3-year follow up. This treatment approach considerably reduced the treatment time and gained bony volume. Additionally, it transformed the periodontal biotype in contrast to conventional therapy. This approach is a good alternative for treating a severe maxillary transverse discrepancy in a skeletally mature patient, especially for a patient who does not want surgical rapid palatal expansion.

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PMID:
26124037
DOI:
10.1016/j.ajodo.2014.08.023
[Indexed for MEDLINE]

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