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Effects on jaw function shortly after whiplash trauma
Umeå University, Faculty of Medicine, Department of Odontology.ORCID iD: 0000-0002-7431-9618
Umeå University, Faculty of Medicine, Department of Odontology.
Umeå University, Faculty of Medicine, Department of Pharmacology and Clinical Neuroscience, Clinical Neuroscience.
Umeå University, Faculty of Medicine, Department of Odontology. Department of Orofacial pain and Jaw function, Malmö University, Malmö, Sweden.ORCID iD: 0000-0001-6088-3739
2017 (English)In: Journal of Oral Rehabilitation, ISSN 0305-182X, E-ISSN 1365-2842, Vol. 44, no 12, p. 941-947Article in journal (Refereed) Published
Abstract [en]

Normal jaw function involves muscles and joints of both jaw and neck. A whiplash trauma may disturb the integrated jaw-neck sensory-motor function and thereby impair chewing ability; however, it is not known if such impairment is present shortly after a neck trauma or develops over time. The aim was to evaluate jaw function after a recent whiplash trauma. Eighty cases (47 women) were examined within 1month after a whiplash trauma and compared to 80 controls (47 women) without neck trauma. Participants completed the Jaw disability checklist (JDC) and Neck Disability Index (NDI) questionnaires and performed a 5-minute chewing test. Elicited fatigue and pain during chewing were noted, and group differences were evaluated with Fisher's exact test and Mann-Whitney U-test. Compared to controls, cases had higher JDC (P<.0001) and NDI scores (15% vs 2%, P<.0001), and reported more fatigue (53% vs 31%, P=.006) and pain (30% vs 10%, P=.003) during the chewing test. Cases also had a shorter onset time for fatigue and pain (both P=.001) Furthermore, cases reporting symptoms during chewing had higher JDC and NDI scores compared to cases not reporting symptoms (both P=.01). Symptoms mainly occurred in the trigeminal area for both groups, but also in spinal areas more often for cases than for controls. Taken together, the results indicate that jaw-neck sensory-motor function is impaired already within 1month after a whiplash trauma. The association between neck disability and jaw impairment underlines the close functional relationship between the regions, and stresses the importance of multidisciplinary assessment.

Place, publisher, year, edition, pages
WILEY , 2017. Vol. 44, no 12, p. 941-947
Keywords [en]
accidents, facial pain, mastication, neck pain, temporomandibular joint dysfunction syndrome, traffic, iplash injuries
National Category
Physiotherapy
Identifiers
URN: urn:nbn:se:umu:diva-142232DOI: 10.1111/joor.12571ISI: 000414577300003PubMedID: 28891205OAI: oai:DiVA.org:umu-142232DiVA, id: diva2:1164661
Available from: 2017-12-11 Created: 2017-12-11 Last updated: 2018-06-09Bibliographically approved

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Lampa, EwaWänman, AndersNordh, ErikHäggman-Henrikson, Birgitta

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