Electromyographic evaluation of chewing muscles, jaw movement and condyles position in edentules subjects with temporomandibular dysfunction before and after using complete dentures with NÓBILOS sliding plates / Avaliação eletromiográfica dos músculos da mastigação, da movimentação mandibular e do posicionamento condilar de pacientes desdentados totais com disfunção temporomandibular, antes e após a instalação de próteses totais com pistas deslizantes de Nóbilo

AUTOR(ES)
DATA DE PUBLICAÇÃO

2007

RESUMO

The purpose of this work was to study the measurements of jaw movements, the condyles position into the mandibular fossas, signs and symptoms of temporomandibular dysfunction and electromyographic activity in edentulous subjects, before and after using complete dentures with Nóbilos sliding plates. Nine subjects were selected with upper and lower complete denture, with signs and symptoms of temporomandibular dysfunction and vertical dimension of the face were modified. The subjects were submitted to measurements of the mandibular movements, analysis of painful symptoms, and evaluation of condyle position in transcranians radiograph and electromyographic recordings before and after using dentures. The findings in this study showed statistical significances in mandibular movements (p<=0,05) lateral movement to the right and left side and protrusion. The painful symptoms after treatment showed statistical significance (p<=0,05) in left temporalis, right and left lateral pterygoid, right and left medial pterygoid and in the temporomandibular joints. Whatever the condylar position there were no significance (p>=0,05) for sliding angles and modulus. The electromyographic activity of the masseter and temporalis muscles was significantly in rest position for right masseter and right temporalis and left masseter for protrusion. In conclusion, it has been found that complete dentures with sliding plates occlusal splint enable to increase the mandibular movements, improve painful symptoms, however showed no changes in condylar position, and promote significantly change the activity in of the muscle in rest protrusion.

ASSUNTO(S)

radiografia transcraniana temporomandibular joint articulação temporomandibular disfunção temporomandibular próteses totais transcranian radiograph electromyography complete dentures eletromiografia temporomandibular dysfunction

ACESSO AO ARTIGO

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