Temporomandibular joint evaluation with magnetic resonance imaging in children with functional unilateral posterior crossbite, treated with rapid maxillary expansion

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dc.contributor.authorMasi, Marcia
dc.contributor.authorLederman, Henrique M.
dc.contributor.authorYamashita, Helio K. [UNIFESP]
dc.contributor.authorArruda Aidar, Luis Antonio de
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionUniv Santa Cecilia
dc.contributor.institutionUniversidade Federal de São Paulo (UNIFESP)
dc.date.accessioned2016-01-24T13:58:35Z
dc.date.available2016-01-24T13:58:35Z
dc.date.issued2009-08-01
dc.description.abstractIntroduction: the purpose of this prospective study was to evaluate qualitatively articular disc position and configuration of the temporomandibular joint (TMJ) with magnetic resonance imaging (MRI) in children with functional unilateral posterior crossbite (FUPXB) treated with Haas-type orthopedic appliances. Methods: the sample included 30 Brazilian children (60 TMJs) of both sexes (8 boys, 22 girls), aged 6.8 to 14.2 years (mean, 10.5 years; SD, 2.1 years). the MRIs were acquired in closed-mouth (CM), maximum-intercuspal (MI), and open-mouth (OM) positions in 3 stages of treatment: initial (T1), at the beginning of treatment; intermediate (T2), immediately after the removal of the expander, and final (T3), 9 months later, at the end of the observation period. Results: No changes were found in articular disc positions of 96.6% of the TMJs in the CM and MI positions, and in 95% in the OM position at T1, T2, and T3. for the articular disc configuration, no changes were observed in 96.66% of the TMJs in the CM and MI positions, and in all TMJs in the OM position, at T1, T2, and T3. Conclusions: On average, this treatment method did not change articular disc positions and configurations. (Am J Orthod Dentofacial Orthop 2009;136:207-17)en
dc.description.affiliationUniv São Paulo, Paulista Sch Med, Dept Diagnost Imaging, São Paulo, Brazil
dc.description.affiliationUniv Santa Cecilia, Dept Orthodont, Santos, Brazil
dc.description.affiliationUniversidade Federal de São Paulo, Paulista Sch Med, Dept Imaging Diagnost, São Paulo, Brazil
dc.description.affiliationUnifespUniversidade Federal de São Paulo, Paulista Sch Med, Dept Imaging Diagnost, São Paulo, Brazil
dc.description.sourceWeb of Science
dc.format.extent207-217
dc.identifierhttp://dx.doi.org/10.1016/j.ajodo.2007.10.048
dc.identifier.citationAmerican Journal of Orthodontics and Dentofacial Orthopedics. New York: Mosby-Elsevier, v. 136, n. 2, p. 207-217, 2009.
dc.identifier.doi10.1016/j.ajodo.2007.10.048
dc.identifier.issn0889-5406
dc.identifier.urihttp://repositorio.unifesp.br/handle/11600/31711
dc.identifier.wosWOS:000268625800019
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofAmerican Journal of Orthodontics and Dentofacial Orthopedics
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.rights.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dc.titleTemporomandibular joint evaluation with magnetic resonance imaging in children with functional unilateral posterior crossbite, treated with rapid maxillary expansionen
dc.typeinfo:eu-repo/semantics/article
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