title: Effect of occlusion on joint sounds in asymptomatic individuals.
abstract: Occlusion is a predisposing factor for Temporomandibular Dysfunctions (TMD) of the joint, whose first sign and/or symptom is usually joint sound. To verify the effect of occlusion on joint sounds, temporomandibular joints (TMJ) were analyzed in 78 asymptomatic individuals with various dental conditions. Electrosonography was used to determine the intensity of the vibration in the temporomandibular joint (TMJ) on opening and closing the mouth. Transducers (piezoelectric accelerometer) were placed on the right and left joints. Results were tabled and analyzed using the Kruskal-Wallis test (a=0.05). It was concluded that TMJ vibration in partly edentulous individuals from Kennedy classes I, II and III is statistically higher than in dentate and fully edentulous subjects.
authors.affiliation: Dental Materials and Prosthesis Department, Araçatuba School of Dentistry, São Paulo State University (UNESP), Brazil. argarcia@foa.unesp.br
authors.forename: Alício Rosalino
authors.initials: AR
authors.lastname: Garcia
authors.forename: Paulo R Junqueira
authors.initials: PR
authors.lastname: Zuim
authors.forename: Marcelo Coelho
authors.initials: MC
authors.lastname: Goiato
authors.forename: Paulo H
authors.initials: PH
authors.lastname: dos Santos
authors.forename: Adriana Barbosa
authors.initials: AB
authors.lastname: Ribeiro
authors.forename: Murillo Sucena
authors.initials: MS
authors.lastname: Pita
authors.forename: Rosse M
authors.initials: RM
authors.lastname: Flacón-Antenucci
mesh_terms: D000054:Acceleration; D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D000369:Aged, 80 and over; D002648:Child; D003766:Dental Occlusion; D004568:Electrodiagnosis / Q000295:instrumentation / Q000379:methods; D006801:Humans; D007575:Jaw, Edentulous / Q000503:physiopathology; D007576:Jaw, Edentulous, Partially / Q000503:physiopathology; D008875:Middle Aged; D016059:Range of Motion, Articular / Q000502:physiology; D012307:Risk Factors; D013016:Sound; D013018:Sound Spectrography / Q000295:instrumentation / Q000379:methods; D013704:Temporomandibular Joint / Q000503:physiopathology*; D014159:Transducers; D014732:Vibration; D055815:Young Adult