Proposal of a new analgesia test based on the observation of nociceptive behavior induced by electric stimulation of dental pulp in the rat
Rajaona, J.; Dallel, R.; Chambrade, S.; Woda, A.
Comptes Rendus des Seances de la Societe de Biologie et de ses Filiales 181(2): 221-227
1987
ISSN/ISBN: 0037-9026 PMID: 2887265 Document Number: 297867
Dental pulp was electrically stimulated in the awake rat. When the stimulus intensity was progressively increased the following four nociceptive reactions successively appeared: jaw opening reflex, scratching, head rotation, vocalization. The threshold of these four reactions was observed before and after administration of three antalgic drugs. No action of the three drugs was observed for the jaw opening reflex. However each drug showed different actions on the other three reactions.