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Clinical signs indicative of temporomandibular disorders in adults: time trends and associated factors
Jönköping University, School of Health Science, HHJ, Dep. of Natural Science and Biomedicine. Jönköping University, School of Health Science, HHJ. Oral health.
Jönköping University, School of Health Science, HHJ. Oral health. Jönköping University, School of Health Science, HHJ, Dep. of Natural Science and Biomedicine.
Jönköping University, School of Health Science, HHJ. Oral health. Jönköping University, School of Health Science, HHJ, Dep. of Natural Science and Biomedicine.
2013 (English)In: Swedish Dental Journal, ISSN 0347-9994, Vol. 37, no 1, 1-11 p.Article in journal (Refereed) Published
Abstract [en]

The study aimed to examine possible time trends in the prevalence of clinical signs indicative of temporomandibular disorder (TMD) in an adult population, to analyse possible associations between TMD signs and associated factors and to estimate the need for TMD treatment. Three independent, stratified and randomly selected samples of around 100 individuals in the age groups of 20, 30, 40, 50, 60 and 70 years participated in the Jönköping studies in 1983,1993 and 2003. The study material consisted of 1,693 subjects who, after answering a questionnaire and being interviewed about the presence of TMD symptoms, were clinically examined in terms of the presence of TMD signs according to the Clinical Dysfunction Index (Di) by Helkimo. Associations between clinical signs and the Di as dependent variables and each of the independent variables of age group, gender, reported bruxism, trauma, self-perceived healthiness and the year of investigation were analysed in binary logistic regression models. Estimates of the need for TMD treatment were based on the presence of a combination of severe symptoms and clinical signs. The prevalence of severely impaired jaw movement capacity, relating to horizontal movements, had increased in 2003. The prevalence of muscle pain and temporomandibular joint pain upon posterior palpation was found to vary statistically significantly between 1993 and 2003. Gender differences were noted in these changes overtime. Female gender, advancing age, awareness of bruxism, self-perceived health impairment and the wearing of complete dentures were associated with TMD signs and a higher degree of clinical dysfunction. The estimated need for TMD treatment increased from 5% in 1983 to 8% in 2003 and was higher in women than in men. In conclusion, the results indicate that the prevalence of some TMD signs and of estimated treatment need increased during the period 1983-2003.

Place, publisher, year, edition, pages
2013. Vol. 37, no 1, 1-11 p.
National Category
Medical and Health Sciences
Identifiers
URN: urn:nbn:se:hj:diva-20955PubMedID: 23721032OAI: oai:DiVA.org:hj-20955DiVA: diva2:616733
Available from: 2013-04-18 Created: 2013-04-18 Last updated: 2015-08-26Bibliographically approved
In thesis
1. On temporomandibular disorders: Time trends, associated factors, treatment need and treatment outcome
Open this publication in new window or tab >>On temporomandibular disorders: Time trends, associated factors, treatment need and treatment outcome
2012 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

During the last few decades, and especially during the 1990s, an increase in musculoskeletal pain conditions and stress-related ill-health has been observed in Sweden. At the same time, an improvement in the oral health of the population has been noted. The overall aim of this thesis was to acquire knowledge relating to possible time trends for the presence of temporomandibular disorders (TMD) in the population. A further objective was to study factors that possibly influence the presence of these disorders and the outcome of their treatment.

Studies I–III are based on a series of repeated cross-sectional population-based investigations. Three independent samples of 130 individuals in the age groups of 3, 5, 10, 15, 20, 30, 40, 50, 60 and 70 years were randomly selected from the inhabitants of the city of Jonkoping, Sweden in 1983, 1993 and 2003. The total participation rate was 21%, 22% and 29% respectively. The participants were examined using a questionnaire, interview and a clinical examination of the stomatognathic system regarding the presence of symptoms and signs indicative of TMD. Study IV is a retrospective survey of a clinical sample of patients referred to and treated at the Department of Stomatognathic Physiology, The Institute for Postgraduate Dental Education, Jonkoping, in 1995–2002. The overall frequencies of symptoms and the rates for some clinical signs and consequently of an estimated treatment need in adults increased during the study period. In 2003, the prevalence of frequent headache in 20-year-olds, mainly females, had markedly increased. The reports of bruxism among adults increased from 1983 to 2003. Awareness of bruxism and self-perceived health impairment were associated with TMD symptoms and signs. A favourable treatment outcome was observed for the majority of patients with common TMD sub-diagnoses and no strong predictors of treatment outcome were found.

In conclusion, the results suggest some time trends towards an increased prevalence in the overall symptoms and some signs indicative of TMD in the Swedish adult population during the time period 1983–2003. A profound understanding of the social determinants of health is recommended when planning public health resources.

Place, publisher, year, edition, pages
Jönköping: School of Health Sciences, 2012. 120 p.
Series
Hälsohögskolans avhandlingsserie, ISSN 1654-3602 ; 38
National Category
Medical and Health Sciences
Identifiers
urn:nbn:se:hj:diva-19842 (URN)978-91-85835-37-9 (ISBN)
Public defence
2012-12-14, Forum Humanum, HHJ (School of Health Sciences), 13:00
Opponent
Supervisors
Available from: 2012-11-26 Created: 2012-11-16 Last updated: 2015-08-26Bibliographically approved

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