Cephalometric evaluation of vertical and anteroposterior changes associated with the use of bonded rapid maxillary expansion appliance

Moara DE ROSSI, Maria Bernadete Sasso STUANI, Léa Assed Bezerra da SILVA

Introduction: Bonded rapid maxillary expansion appliances have been suggested to control increases in the vertical dimension of the face after rapid maxillary expansion but there is still no consensus in the literature concerning its actual effectiveness. Objective: The purpose of this study was to evaluate the vertical and anteroposterior cephalometric changes associated with maxillary expansion performed using bonded rapid maxillary expansion appliances. Methods: The sample consisted of 25 children of both genders, aged between 6 and 10 years old, with skeletal posterior crossbite. After maxillary expansion, the expansion appliance itself was used for fixed retention. Were analyzed lateral teleradiographs taken prior to treatment onset and after removal of the expansion appliance. Conclusion: Based on the results, it can be concluded that the use of bonded rapid maxillary expansion appliance did not significantly alter the children's vertical and anteroposterior cephalometric measurements.

Keywords: Bonded rapid maxillary expansion appliance. Rapid maxillary expansion. Cephalometry.

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