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Rhythmical Jaw Opening-Closing Patterns in Healthy Individuals
Umeå universitet, Medicinska fakulteten, Institutionen för odontologi.
Umeå universitet, Medicinska fakulteten, Institutionen för odontologi.
2015 (engelsk)Independent thesis Advanced level (professional degree), 20 poäng / 30 hpOppgave
Abstract [en]

Pain affects movements, hampers normal function and may induce dysfunction in jaw system. The aim of this study was to examine if the pattern and stability of a rhythmical jaw opening- closing task changed during a five minute session, in healthy individuals. The analyses included nine men and nine women (mean age 26.7 years; SD 5.3). The participants were instructed to perform rhythmical jaw opening-closing movements with a pace of one per second and amplitude of approximately 20 mm during a five minutes period. The jaw movements were recorded with a 3D optoelectronic recording system. The parameters’ analyses were jaw opening-closing amplitudes and cycle times, to analyze if these parameters differed between men and women and to evaluate if the task evoked tiredness or pain in the jaws. The ten first jaw opening-closing amplitudes and cycle times at each sequence were analysed and compared within individuals and between the groups. Non-parametrical statistics were used. A P-value <0.05 was considered statistically significant. The results showed for both men and women a significant decrease in amplitude and cycle time between the first and the other sequences. The results showed for both men and women that the rhythmical jaw opening-closing task induces self-reported tiredness in the jaws. In conclusion, individuals seem to adhere to pace by reducing amplitude and cycle time during continuous jaw opening-closing tasks. When used as exercise for rehabilitation of the jaw function both patients and dentists should be aware of this behavior.

sted, utgiver, år, opplag, sider
2015.
HSV kategori
Identifikatorer
URN: urn:nbn:se:umu:diva-113643OAI: oai:DiVA.org:umu-113643DiVA, id: diva2:886272
Utdanningsprogram
Dentistry Programme
Veileder
Examiner
Tilgjengelig fra: 2015-12-22 Laget: 2015-12-22 Sist oppdatert: 2016-02-08bibliografisk kontrollert

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