title: Ultrasonography and electromyography of masticatory muscles in a group of adolescents with signs and symptoms of TMD.
abstract: The thickness and electrical activity of masseter and anterior temporalis muscles were compared in adolescents with and without signs and symptoms of TMD. Forty individuals were selected using the Cranio Mandibular Index and a questionnaire. There was no significant correlation between thickness and activity (p > 0.05). However, there were correlations between thickness and weight and height (p < 0.05). The effect of signs and symptoms on muscle thickness and activity was weak, considering the low CMI scores found.
authors.affiliation: Department of Oral Physiology, State University of Campinas - Piracicaba Dental School, SP, Brazil.
authors.forename: Luciano José
authors.initials: LJ
authors.lastname: Pereira
authors.forename: Maria Beatriz Duarte
authors.initials: MB
authors.lastname: Gavião
authors.forename: Leonardo Rigoldi
authors.initials: LR
authors.lastname: Bonjardim
authors.forename: Paula Midori
authors.initials: PM
authors.lastname: Castelo
authors.forename: Annicele da Silva
authors.initials: Ada S
authors.lastname: Andrade
mesh_terms: D000293:Adolescent; D001827:Body Height; D001835:Body Weight; D016022:Case-Control Studies; D002648:Child; D004576:Electromyography; D005260:Female; D006801:Humans; D008297:Male; D008410:Masticatory Muscles / Q000000981:diagnostic imaging* / Q000473:pathology / Q000503:physiopathology; D018709:Statistics, Nonparametric; D011795:Surveys and Questionnaires; D013705:Temporomandibular Joint Disorders / Q000000981:diagnostic imaging* / Q000503:physiopathology; D014463:Ultrasonography