title: Chronic myofascial pain, disk displacement with reduction and psychosocial factors in Finnish non-patients.
abstract: This study aimed to determine chronic groups of myofascial pain and chronic disk displacement with reduction over a 1-year period, and to study the relationship between psychological status and these chronic subgroups of temporomandibular disorders (TMD) in non-patients. A total of 211 subjects (males 47%, mean age 46 years; standard deviation 6) attended examinations in 1999 and 2000 performed according to the Research Diagnostic Criteria for Temporomandibular Disorders (RDC/TMD). Chronic myofascial pain was found in 7% and chronic disk displacement with reduction in 11% of subjects; new diagnoses were made in only 4% and 1% of the subjects, respectively. An increase in the level of somatization by 1 step increased the probability of having chronic myofascial pain by over 3 times (P = 0.006). Myofascial pain and disk displacement with reduction seem to be relatively common and fluctuating in nature in non-patients. As somatization associated significantly with myofascial pain, this should be borne in mind in the management of TMD. The results strengthen the rationale of the biopsychosocial orientation in health care.
authors.affiliation: Department of Stomatognathic Physiology and Prosthetic Dentistry, Institute of Dentistry, University of Helsinki, Helsinki, Finland. mikko.rantala@helsinki.fi
authors.forename: Mikko A I
authors.initials: MA
authors.lastname: Rantala
authors.forename: Jari
authors.initials: J
authors.lastname: Ahlberg
authors.forename: Tuija I
authors.initials: TI
authors.lastname: Suvinen
authors.forename: Aslak
authors.initials: A
authors.lastname: Savolainen
authors.forename: Mauno
authors.initials: M
authors.lastname: Könönen
mesh_terms: D000328:Adult; D016009:Chi-Square Distribution; D002908:Chronic Disease; D003863:Depression / Q000150:complications; D005157:Facial Pain / Q000209:etiology; D005260:Female; D005387:Finland; D006801:Humans; D004204:Joint Dislocations / Q000150:complications / Q000523:psychology; D016015:Logistic Models; D008297:Male; D008875:Middle Aged; D013001:Somatoform Disorders / Q000150:complications; D013705:Temporomandibular Joint Disorders / Q000150:complications / Q000523:psychology*; D013706:Temporomandibular Joint Dysfunction Syndrome / Q000150:complications / Q000523:psychology