Myogenous temporomandibular disorder pain : diagnosis, etiology, motor consequences, and treatment follow-up
Year: 2007
Type: other
Abstract: In a single case study, the most frequently suggested contributing factors to myogenous TMD pain, viz., oral parafunctions and psychological stress, were studied in more detail. During a 13-week study period, questionnaires were completed, in which, among others, jaw muscle pain, bruxism behaviour, and experienced/anticipated stress were noted. During about 40% of the nights, nocturnal masticatory muscle activity (NMMA) was recorded, using single-channel electromyography (EMG). The number of NMMA events per recorded hour was scored, using a detection threshold of 10% of the maximum voluntary contraction (MVC) level. This threshold was established in a separate study, in which EMG was compared with polysomnography (PSG). Stepwise regression analyses indicated, that morning jaw muscle pain could be explained by evening jaw muscle pain for 64% and by alcohol intake for another 2%. In turn, evening jaw muscle pain was explained by daytime clenching for 56% and by vacuum sucking of the tongue for an additional 6%. Finally, daytime clenching was significantly explained by experienced stress for 30%. Data of the recorded nights showed, that variations in NMMA did not contribute to variations in morning jaw muscle pain. This case study corroborates the paradigm that experienced stress may be related to daytime clenching and, in turn, to evening and morning jaw muscle pain. Chapter 3 This chapter is an edited version of the article: van Selms MKA, Lobbezoo F, Wicks DJ, Hamburger HL, Naeije M (2004). Craniomandibular pain, oral parafunctions, and psychological stress in a longitudinal case study. Journal of Oral Rehabilitation.
Author: M.K.A. van Selms
Language: English
Subfield: Oral Surgery
Field: Dentistry
Domain: Health Sciences
Open Access status: green
OpenAlex ID: W2257666835