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Incidence and prevalence of temporomandibular joint pain and dysfunction: a one-year prospective study of university students
Umeå universitet, Medicinsk fakultet, Odontologi, Klinisk oral fysiologi.
Umeå universitet, Medicinsk fakultet, Odontologi, Klinisk oral fysiologi.
2007 (Engelska)Ingår i: Acta Odontologica Scandinavica, ISSN 0001-6357, E-ISSN 1502-3850, Vol. 65, nr 2, s. 119-127Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Objective. The aims of this study were to investigate the incidence and recovery of temporomandibular joint (TMJ) pain and dysfunction during a 1-year period, and to examine factors associated with TMJ signs and symptoms.

Material and Methods. The study population comprised 371 dental students examined at the start of education, out of which 308 were re-examined after 1 year. Case histories were collected with the aid of a questionnaire.

The cinical examination involved TMJ mobility, TMJ pain, TMJ sounds, morhological and functional dental occlusion.

Results. The 1-year incidence of TMJ signs and/or symptoms was 12%, with no statistically significant difference between men and women. Reported TMJ sounds (10%) and clinically registered TMJ pain (8%) reached the highest incidence rates. Approximately a quarter of those who had TMJ signs and/or symptoms at baseline had recovered at follow-up. Subjects with a non-symptomatic TMJ were significantly more often found among men and among those with bilateral contacts in centric relation, a normal transverse inter-maxillary relationship, and a stabile manadibular position in centric occlusion.

Conclusion. The 1-year incidence of TMJ pain and/or dysfunction was high among 1st-year univerisity students. The persistence of signs and symptoms during the observation period was related to gender, while incidence and disappearance of symptoms were not. Dental occlusion was not rejected as a possible concurrent factor in relation to TMJ pain and/or dysfunction among university students.

Ort, förlag, år, upplaga, sidor
2007. Vol. 65, nr 2, s. 119-127
Nyckelord [en]
Dental occlusion, longitudinal study, mandibular instability, pain, temporomandibular disorders
Identifikatorer
URN: urn:nbn:se:umu:diva-12972DOI: 10.1080/00016350601083554PubMedID: 17453430Scopus ID: 2-s2.0-34247372229OAI: oai:DiVA.org:umu-12972DiVA, id: diva2:152643
Tillgänglig från: 2008-01-18 Skapad: 2008-01-18 Senast uppdaterad: 2023-03-23Bibliografiskt granskad
Ingår i avhandling
1. Temporomandibular disorders: incidence, course, and risk factors
Öppna denna publikation i ny flik eller fönster >>Temporomandibular disorders: incidence, course, and risk factors
2009 (Engelska)Doktorsavhandling, sammanläggning (Övrigt vetenskapligt)
Alternativ titel[sv]
Käkfunktionsstörning : förlopp och riskfaktorer
Abstract [en]

Temporomandibular disorders (TMD) embrace pain and dysfunction in the temporomandibular joint (TMJ) and jaw muscles. TMD is a prevalent condition in the population and constitutes a significant health problem. Knowledge of factors influencing the onset and course of TMD is important in preventive care and development of treatment strategies as well as in clinical decision making. The aim of this thesis was to gain knowledge of whether variations in dental occlusion, bruxism, spinal pain and gender predicted the development and course of TMD.

The study population comprised 371 undergraduate dental students. A questionnaire was used to obtain case histories. Clinical examination included the function of the TMJ, jaw muscles, maximal jaw mobility, the morphological occlusion, and contact patterns in centric and eccentric positions. The examinations were performed at start, and after 12 and 24 months. In total, 280 subjects were examined at all three occasions.

The incidence of TMJ pain and dysfunction was high among both males and females. The course composed onset, recovery and maintenance resulting in a fluctuating pattern. Females were more likely to have persistent TMJ pain and dysfunction than males. The incidence and persistence of jaw muscle signs and symptoms was high and significantly more common in females. A similar fluctuating pattern as for TMJ pain and dysfunction was found. Crossbite predicted onset and persistence of TMJ pain and dysfunction; mandibular instability in centric positions predicted persistent TMJ pain and dysfunction, as well as persistent jaw muscle signs or symptoms. Reported bruxism increased the risk for TMJ pain and dysfunction but did not significantly affect the course of jaw muscle signs and symptoms. Spinal pain at baseline predicted the onset of jaw pain, headaches, and TMD pain. Signs of TMD at baseline predicted the onset of non-pain symptoms of TMD, jaw pain, headaches, and spinal pain.

In conclusion, the results in this thesis show high incidence rates for TMD, headaches, and spinal pain among dental students. Crossbite, mandibular instability, reported bruxism, as well as female gender were identified as contributing risk factors. Spinal pain and TMD mutually predicted each other, indicating common pathophysiological mechanisms and individual vulnerability. The findings support a multidisciplinary approach, and it is recommended that the status and function of the jaw system be considered in patients with spinal pain.

Ort, förlag, år, upplaga, sidor
Umeå: , 2009. s. 68
Serie
Umeå University odontological dissertations, ISSN 0345-7532 ; 108
Nyckelord
bruxism, dental occlusion, gender, headaches, longitudinal, myofascial pain, orofacial pain, prospective cohort, risk factors, spinal pain, temporomandibular joint
Nationell ämneskategori
Odontologi
Identifikatorer
urn:nbn:se:umu:diva-25689 (URN)978-91-7264-832-6 (ISBN)
Distributör:
Klinisk oral fysiologi, 901 87, Umeå
Disputation
2009-09-25, Sal B, By 1D, 9tr, Tandläkarhögskolan, Umeå, 09:00 (Svenska)
Opponent
Handledare
Tillgänglig från: 2009-09-07 Skapad: 2009-08-28 Senast uppdaterad: 2018-06-08Bibliografiskt granskad

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Marklund, SusannaWänman, Anders

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