Electromyographic and ultrasonographic assessment of the masseter muscle in normal individuals: a pilot study.
BACKGROUND
recent studies have used ultrasonography with the purpose of measuring muscle cuts.


OBJECTIVE
to characterize the motor control and the morphology of the masseter muscle in normal individuals, verifying the compatibility between surface electromyography and ultrasonography.


METHODS
five adult individuals, with no alterations of the stomatognathic system. The adopted assessment procedures for all participants were: 1. Surface Electromyography; 2. Ultrasonography.


RESULTS
a high correlation was observed only when comparing both hemifaces in the ultrasonographic assessment (rest 0.95; biting 0.86).


CONCLUSIONS
the results indicate that there is no correlation between the tested methods, suggesting that both methods are complementary and not mutually excludent.
Faculdade de Medicina, Universidade de São Paulo. lauramangilli@usp.br
Laura Davison
LD
Mangilli
Fernanda Chiarion
FC
Sassi
Renato Antônio
RA
Sernik
Clarice
C
Tanaka
Claudia Regina Furquim
CR
de Andrade
D000328:Adult; D004576:Electromyography; D006801:Humans; D008406:Masseter Muscle / Q000000981:diagnostic imaging* / Q000502:physiology*; D010865:Pilot Projects; D018709:Statistics, Nonparametric; D014463:Ultrasonography; D055815:Young Adult