A precision tooth-pulp stimulation technique for the assessment of pain threshold |
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Authors: | Barry R. Dworkin Mathew H. M. Lee Herbert H. Zaretsky Hope A. Berkeley |
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Affiliation: | 1. Rockefeller University, 10021, New York, New York 2. Department of Rehabilitation Medicine, Goldwater Memorial Hospital, New York University Medical Center, 10044, Roosevelt Island, New York
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Abstract: | Accurate and consistent pain threshold measurements for the tooth pulp can be achieved with careful preparation of a moisture-proof appliance and the use of a high-quality constant-current stimulator. Using an extant dental filling as the cathode, the usual problems associated with the control of the stimulation area and locus and, consequently, current density can be overcome. Repeated measurements showing less than ±5% variation over many months can be routinely achieved on the same individual. The technique has shown a high degree of sensitivity to common analgesic agents and is potentially useful for the investigation of variations in pain threshold over extended periods of time. |
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