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Risk factors associated with symptoms of temporomandibular disorders in a population of 50- and 60-year-old subjects

Journal article
Authors Anders Johansson
Lennart Unell
Gunnar E Carlsson
Björn Söderfeldt
Arne Halling
Published in J Oral Rehabil
Volume 33
Pages 473-481
Publication year 2006
Published at Institute of Odontology
Pages 473-481
Language en
Keywords Bruxism, epidemiology, orofacial pain, questionnaire, temporomandibular joint
Subject categories Other odontology


The aims were first to investigate, by means of a mail questionnaire, variables from three domains (1) socio-economic attributes, (2) general and oral health, and (3) dental attitudes and behaviours in a large sample of 50- and 60-year-old subjects, and second to compare subjects with or without reported TMJ pain with respect to these variables. In 2002, a questionnaire was mailed to all 50- and 60-year-old subjects in two Swedish counties, Örebro and Östergötland (n=17138; n50=8878; n60=8260). Individuals not responding within two weeks were given a reminder. If still not answering, a new questionnaire was sent. The final response rate was 72.8% (n=12468). The reported responses to questions regarding “pain in the TMJ region” and “difficulty to open the mouth wide” were dichotomised into two groups, 1) no TMD symptoms, and 2) some, rather great, or severe TMD symptoms. Striking differences in demographic, occupational, general and oral health conditions were found between the groups with and without TMD symptoms. The strongest risk indicator for both pain and dysfunction was reported bruxism. Women, younger subjects (50 years old) and blue collar workers were significantly more prevalent in the TMD symptom groups. Variables related to impaired general and oral health were more common in the groups with reported TMD problems, whereas satisfaction with received dental care and with teeth was lower. Individuals with reported TMD symptoms differed significantly from those without TMD symptoms in socio-economic attributes, general and oral health symptoms, dental conditions and satisfaction with their teeth.

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