Posterior crossbite - treatment and stability

AUTOR(ES)

Almeida, Renato Rodrigues de, Almeida, Marcio Rodrigues de, Oltramari-Navarro, Paula Vanessa Pedron, Conti, Ana Cláudia de Castro Ferreira, Navarro, Ricardo de Lima, Marques, Henry Victor Alves

FONTE

Journal of Applied Oral Science

DATA DE PUBLICAÇÃO

2012-04

RESUMO

Posterior crossbite is defined as an inadequate transversal relationship of maxillary and mandibular teeth. Even when eliminating the etiologic factors, this malocclusion does not have a spontaneous correction, and should be treated with maxillary expansion as early as possible. This treatment aims at providing a better tooth/skeletal relationship, thereby improving masticatory function, and establishing a symmetrical condyle/fossa relationship. Should posterior crossbite not be treated early, it may result in skeletal changes, demanding a more complex approach. Additionally, an overcorrection expansion protocol should be applied in order to improve the treatment stability. Although the literature has reported a high rate of relapse after maxillary expansion, the goal of this study was to demonstrate excellent stability of the posterior crossbite correction 21 years post treatment.

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