Do incisor and molar periodontal ligament mechanoreceptors stimulate antral motility to different degrees? | Zendy

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Do incisor and molar periodontal ligament mechanoreceptors stimulate antral motility to different degrees?

Author(s) -

Lorber Mortimer

Publication year - 2013

Publication title -

the faseb journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.709

H-Index - 277

eISSN - 1530-6860

pISSN - 0892-6638

DOI - 10.1096/fasebj.27.1_supplement.1157.2

Subject(s) - periodontal fiber , molar , incisor , biting , occlusion , antrum , dentistry , medicine , orthodontics , mastication , mandibular first molar , tongue , anatomy , basal (medicine) , chemistry , biology , stomach , pathology , ecology , insulin

Teeth are not ankylosed to their sockets. A periodontal ligament (PDL) lies between each root and its socket. PDL movement during dental occlusion activates its mechanoreceptors (PDLMs)linked to the vagal motor n. to simulate antral motility (Lorber, Can J Physiol Pharmacol 67:29–35, 2000). 10 fasted adult female rats had three 5 min periods: basal, procedure and post‐proc. The procedure was vertical jaw movements at a rate of 1/s. In five rats, only back teeth contacted as in chewing. In the others the edge of a tongue blade between incisors simulated biting. Molar antral motility values were 3.20 ±1.10 (s.d.), 8.40 ± 3.28 , 8.60 ± 1.34 . Incisor values were 4.80 ± 1.92 , 7.40 ± 4.98 , 7.40 ± 3.05 . Molar occlusion was significant by the Friedman ANOVA, P = 0.032, but incisor occlusion was not, P = 0.074.

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