Journal
JOURNAL OF DENTAL RESEARCH
Volume 86, Issue 1, Pages 64-68Publisher
SAGE PUBLICATIONS INC
DOI: 10.1177/154405910708600110
Keywords
jaw clenching; tooth tapping; chewing; cerebral blood flow; transcranial; Doppler ultrasound ( TCD); muscle
Categories
Ask authors/readers for more resources
Temporal changes in cerebral blood flow induced by jaw movement have yet to be investigated. To assess the influence of pattern and intensity of muscle contraction during jaw movement on task-induced change in cerebral blood flow, we performed bilateral transcranial Doppler ultrasound examination during clenching, gum chewing, and tooth tapping in healthy volunteers. A random-effects model analysis revealed a significant increase in middle cerebral artery blood flow velocity during clenching (high muscle activity) and gum chewing (moderate muscle activity), compared with the preceding rest period; however, such an increase was not detected during tooth tapping (low muscle activity). Cerebral blood flow was greater on the working side during the intensive isometric contraction of the masseter muscle in clenching. These results suggest that task-induced change in cerebral blood flow during jaw movement is influenced by the change in peripheral circulation evoked by muscle contraction.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available