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Head Immobilization can Impair Jaw Function.
- Source :
- Journal of Dental Research; Nov2006, Vol. 85 Issue 11, p1001-1005, 5p, 2 Diagrams, 2 Graphs
- Publication Year :
- 2006
-
Abstract
- Findings that jaw-opening/-closing relies on both mandibular and head movements suggest that jaw and neck muscles are jointly activated in jaw function. This study tested the hypothesis that rhythmic jaw activities involve an active repositioning of the head, and that head fixation can impair jaw function. Concomitant mandibular and head-neck movements were recorded during rhythmic jaw activities in 12 healthy adults, with and without fixation of the head. In four participants, the movement recording was combined with simultaneous registration of myoelectric activity in jaw and neck muscles. The results showed neck muscle activity during jaw opening with and without head fixation. Notably, head fixation led to reduced mandibular movements and shorter duration of jaw-opening/-closing cycles. The findings suggest recruitment of neck muscles in jaw activities, and that head fixation can impair jaw function. The results underline the jaw and neck neuromuscular relationship in jaw function. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00220345
- Volume :
- 85
- Issue :
- 11
- Database :
- Complementary Index
- Journal :
- Journal of Dental Research
- Publication Type :
- Academic Journal
- Accession number :
- 36440802