Complete Maxillary Crossbite Correction with a Rapid Palatal Expansion in Mixed Dentition Followed by a Corrective Orthodontic TreatmentReportar como inadecuado




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Case Reports in Dentistry - Volume 2016 2016, Article ID 8306397, 6 pages -

Case Report

Graduate Dentistry Program in Orthodontics, Pontifícia Universidade Católica do Paraná, Rua Imaculada Conceição 1155, 80215-901 Curitiba, PR, Brazil

Postdoctoral Fellowship at The Center for Advanced Dental Education, Saint Louis University, St. Louis, MO, USA

Dentistry, Pontifícia Universidade Católica do Paraná, Curitiba, PR, Brazil

Orthodontics, Pontifícia Universidade Católica do Paraná, Curitiba, PR, Brazil

Department of Oral Health Sciences, Forensic Dentistry, KU Leuven and Dentistry, University Hospitals Leuven, Leuven, Belgium

Stomatology, Pontifícia Universidade Católica do Paraná, Curitiba, PR, Brazil

Received 6 February 2016; Revised 24 March 2016; Accepted 29 March 2016

Academic Editor: Hüsamettin Oktay

Copyright © 2016 Orlando Motohiro Tanaka et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

This case report presents the interceptive orthodontic treatment of a boy, aged 8 years 4 months with a Class I malocclusion with severe transverse maxillary deficiency and complete maxillary crossbite and correction using Haas expansion and fixed appliance. The treatment goals were to correct the posterior crossbite and anterior crossbite and restore the normality of the dentition and occlusion. In phase I, the patient was treated with a modified Haas-type palatal expander, which provided a clinically significant palatal expansion and increased the maxillary arch perimeter with favorable conditions for orthodontic treatment with fixed appliances in phase II. The optimization of E-space and the use of intermaxillary Class III elastics helped to maintain the mandibular incisors upright. A removable wraparound type appliance and a bonded lingual canine-to-canine retainer were used as retention. Although the literature has reported a high rate of relapse after palatal expansion, after 2 years 9 months of posttreatment follow-up, the occlusal result was stable and no skeletal reversals could be detected.





Autor: Orlando Motohiro Tanaka, Isabelle Adad Fornazari, Ariane Ximenes Graciano Parra, Bruno Borges de Castilhos, and Ademir Franco

Fuente: https://www.hindawi.com/



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