Quantitative relation between the intensity of tooth pulp stimulation and the magnitude of jaw opening reflex in the rat.
The stimulus-response relation in the jaw opening reflex evoked by tooth pulp stimulation, which is considered as a "pain index", follows the power function with an exponent of about six over a range of lower stimulus intensities.
D000818:Animals; D003782:Dental Pulp / Q000502:physiology; D004558:Electric Stimulation; D008410:Masticatory Muscles / Q000502:physiology*; D010146:Pain / Q000503:physiopathology*; D011601:Psychophysics; D051381:Rats; D012018:Reflex / Q000502:physiology*