Premium
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.