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Physiologic analyzers designed to evaluate the pulpal vitality of teeth by electrically stimulating the nerve tissue of the pulp. The electric current needed to obtain a patient response to the stimulus is a measure of the condition of the dental pulp. These analyzers usually consist of a high-frequency electronic oscillator, cables, and electrodes to apply the electrical signal; some units include a display. Dental pulp physiologic analyzers are used to determine pulp necrosis, pulpitis, and involvement of teeth that are near lesions.
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