Process for devitalizing teeth using high-frequency electric current

Electronic apparatus (10) for generating high-frequency electric pulses inside the root canal (84, 85) of a diseased tooth in preparation for the necessary treatment,

• characterized in that it comprises a circuit (122) for generation of high-frequency electric pulses, connection of said circuit, by means of an electric cable (54) and supporting handle (50), to an electrode in the form of a needle (100) sufficiently long, according to the type of tooth, to reach the apical hole (90) in the root canal (84, 85) and make contact with the vascular-nervous tissue (40-42), circuits (123, 125-127, 131) that regulate the power, time of application and frequency of the high-frequency electric pulse at values sufficient for destruction of the vascular-nervous tissue (40-42), and a control device (70) by means of which, when the tip of the needle (100) has practically reached said apical hole (90), said high-frequency electric pulse is generated and passes into the vascular-nervous tissue (40-42) in contact with the needle (100) eliminating that portion in contact with the needle, the remainder that has not been eliminated becoming coagulated.