Efeito da reabilitaÃÃo dental por meio de prÃteses totais na atividade eletromiogrÃfica dos mÃsculos masseter e supra-hiÃideos / Effect of dental rehabilitation through total prosthesis in electromyographic activity of masseter and suprahyoid muscles

AUTOR(ES)
DATA DE PUBLICAÇÃO

2009

RESUMO

Electromyography is the register and detection of electric potentials of muscular fibers. It is the gold standard in evaluation of muscular functioning. Adding usefulness of electromyography up to existence of studies that report muscular alterations in total toothless subjects, and that, there are few researches about muscular changes in totals prosthesis wearers, the objective of this research was analyze the effect of rehabilitation in electromyographic activity of masseter and suprahyoid muscles during rest, maximal isometric voluntary contraction, maximal opening and usual mastication, before and after three months of adaptation with complete dentures. The study was performed with 25 total edentulous, 6 male and 19 female, mean age of 63,28 years, who were linked to prosthetic clinics for production and adaptation of complete dentures. After prosthetic rehabilitation, the results showed that, in relation to masseter muscles, there were changes on electromyographic ativity during rest and habitual mastication. In rest position, the masseter muscles demonstrated an increased activity on right side and a decreased activity in left side, and during habitual mastication there was a decreased activity on left side. On the other hand, suprahyoid muscles changed electric activity only on rest with complete denture rehabilitation, which increased in both sides. It is possible to conclude that there is an influence between the masticatory activity of these muscles and the total prosthesis wear

ASSUNTO(S)

supra-hiÃideo masseter rehabilitation eletromiografia suprahyoid edÃntulo anatomia patologica e patologia clinica electromyographic masseter edentulous reabilitaÃÃo

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