In this paper we concentrate on electrical properties of tooth during electrical stimulation using various electrode-tooth interfaces. Established resistances of teeth connections are compared for each type of electrode. Total impedance as well as the voltage step response of tooth is recorded with different electrodes. The current stabilized pulp-tester is built and used to measure the required parameters of stimuli in order to obtain stable and comparable readings. For that purpose

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... uration curve is recorded. Use of current and voltage stimuli by pulp-testers is reviewed. Keywords-Tooth impedance, electric pulp vitality tester, intensity-duration curve of tooth, step response of tooth.