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The Effect of Sectioning the Trigeminal Sensory Root on the Periodontally-induced Jaw-opening Reflex

Centre de recherche en sciences neurologiques, and Faculté de médecine dentaire, Université de Montreal, Montreal, Québec, Canada H3C 3J7

J.P. Lund

Centre de recherche en sciences neurologiques, and Faculté de médecine dentaire, Université de Montreal, Montreal, Québec, Canada H3C 3J7

The experiment was designed to determine the pathway taken to the brain stem by periodontal afferents responsible for the digastric jaw-opening reflex induced by tooth-tapping. Cutting the trigeminal sensory roots of anesthetized decerebrate cats eliminated the ipsilateral periodontally-induced reflex, although the stretch reflexes of the jaw-closing muscles were undiminished. These results suggest that periodontal afferents causing the jaw-opening reflex reach the brainstem through the Vth sensory root, and confirm that muscle spindle afferents travel through the Vth motor root.

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Journal of Dental Research, Vol. 66, No. 10, 1533-1537 (1987)
DOI: 10.1177/00220345870660100401


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This Article Abstract Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Citation Map Services Email this article to a friend Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Add to Saved Citations Download to citation manager Request Permissions Request Reprints Add to My Marked Citations Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Citing Articles via Scopus Google Scholar Articles by Collier, T.G. Articles by Lund, J.P. Search for Related Content PubMed PubMed Citation Articles by Collier, T.G. Articles by Lund, J.P. Social Bookmarking                         What's this?