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Evaluation of the Curing of Adhesive Systems by Rheological and Thermal Testing
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A quantitative evaluation of thermal pulp testing.

J H White, R L Cooley

    Journal of Endodontics
    |August 18, 2016
    PubMed
    Summary
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    Skin refrigerant and tap hot water showed the greatest thermal changes in pulp testing. This quantitative evaluation compared seven thermal pulp testing methods on extracted teeth.

    Area of Science:

    • Dental diagnostics
    • Thermophysiology

    Background:

    • Accurate pulp vitality assessment is crucial in endodontics.
    • Thermal pulp testing is a common diagnostic method.
    • Quantitative data on the efficacy of different thermal stimuli is limited.

    Purpose of the Study:

    • To quantitatively evaluate seven common thermal pulp testing methods.
    • To compare the effectiveness of cold and heat stimuli in eliciting thermal changes in the pulp chamber.

    Main Methods:

    • Developed an electronic circuit with a thermistor and digital multimeter to measure pulp chamber temperature changes.
    • Tested seven thermal stimuli on extracted human teeth.
    • Compared cold stimuli: skin refrigerant, ice water bath, ice stick.
    • Compared heat stimuli: hot tap water, hot gutta-percha, hot burnisher, Burlew wheel.

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    Main Results:

    • Skin refrigerant produced a significantly greater thermal change compared to ice water or ice stick.
    • Hot tap water flooding resulted in a greater thermal change than hot gutta-percha, hot burnisher, or Burlew wheel.
    • The electronic circuit provided precise temperature change measurements.

    Conclusions:

    • Skin refrigerant is a highly effective cold stimulus for pulp testing.
    • Hot tap water is the most effective heat stimulus among those tested.
    • The developed electronic method offers a reliable way to quantify thermal pulp testing responses.