Michelle Santos Vianna-Lara

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INTRODUCTION The objective of this study was to evaluate and compare the electromyographic (EMG) activity of the orbicularis oris--lower fascicle (LOO) muscle and the mentalis muscle (MT)--in predominantly nose-breathing (PNB) and mouth-breathing (PMB) subjects. METHODS Thirty-four subjects, 22 PNB and 12 PMB, with Class II Division 1 malocclusions were(More)
OBJECTIVE The aim of this study was to evaluate the electromyographic activity of both the temporalis and masseter muscles and the mastication type of patients with skeletal unilateral posterior crossbite before and after orthodontic treatment and speech therapy. METHODS A total of 14 patients with skeletal unilateral posterior crossbite (eight females(More)
Correpondence to: Michelle Santos Vianna-Lara Rua Francisco Rocha, 62, conj. 409 Batel – Curitiba – Paraná Brazil CEP 80420-130 Phone: 55 (41) 3014-0947 Fax: 55 41 271-1405 E-mail: m.vianna@pucpr.br Abstract The purpose of this research was to compare the electromyographic (EMG) activity of the superior belly of orbicularis oris muscle between individuals(More)
OBJECTIVES To compare the electromyographic (EMG) activity of the masseter and anterior portion of temporal muscles in different vertical facial types. MATERIALS AND METHODS Clinical examination, cephalometric analysis, and electromyographic examination were performed in 44 volunteers ranging from 18 to 35 years old. The volunteers were classified on the(More)
AIMS To analyze and compare the electromyographic activity of the temporal (anterior portion) and masseter muscles among Karate-Dō athletes before and after training, with and without the use of a mouthguard. METHODS Twenty athletes (14 males and 6 females) with a mean age of 23.7 ± 7.5 years participated. They had surface electromyography recordings(More)
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