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Effect of rapid maxillary expansion on glenoid fossa and condyle-fossa relationship in growing patients (MEGP): Study protocol for a controlled clinical trial

2018; Medknow; Volume: 8; Issue: 2 Linguagem: Inglês

10.4103/jispcd.jispcd_458_17

2250-1002

MonaSayegh Ghoussoub, Khaldoun Rifaï, Robert Garcia, Ghassan Sleilaty,

Temporomandibular Joint Disorders

Aims and Objectives: Rapid maxillary expansion (RME) is an orthodontic nonsurgical procedure aiming at increasing the width of the maxilla by opening mainly the intermaxillary suture in patients presenting a transverse maxillary skeletal deficiency.The objectives of the current prospective controlled clinical and radiographic study are to evaluate the hypothesis that RME in growing patients will result in radiographic changes at the level of interglenoid fossa distance, condyle-fossa relationship, and nasal cavity widths compared to the group who received no treatment initially and served as untreated control.Materials and Methods: In this prospective controlled clinical and radiographic study, forty healthy growing patients selected from a school-based population following a large screening campaign, ranging in age between 8 and 13 years, presenting a maxillary constriction with bilateral crossbite, and candidates for RME are being recruited.The first group will include participants willing to undergo treatment (n = 25) and the other group will include those inclined to postpone (n = 15).Results: The primary outcome is to compare radiologically the interglenoid fossa distance and the condyle-fossa relationship; nasal cavity width will be a secondary outcome.A multivariable analysis of Covariance model will be used, with the assessment of the time by group interaction, using age as covariate.