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Related Experiment Videos

The heat generated on the external root surface during post space preparation.

E M Saunders, W P Saunders

    International Endodontic Journal
    |July 1, 1989
    PubMed
    Summary
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    Post space preparation using engine-driven drills can significantly increase tooth root surface temperature, potentially damaging surrounding tissues. Caution is advised during this dental procedure.

    Area of Science:

    • Endodontics
    • Dental Materials Science
    • Biomaterials

    Background:

    • Post space preparation is a critical step in restoring endodontically treated teeth.
    • Elevated temperatures during dental procedures can cause thermal damage to periradicular tissues.

    Purpose of the Study:

    • To quantify the heat generated on the external root surface of human premolar teeth during post space preparation.
    • To evaluate the thermal effects of different post space preparation techniques.

    Main Methods:

    • In vitro study measuring temperature rise on the external root surface of human premolars.
    • Thermocouple used to record temperature at 6 mm from the apex.
    • Comparison of heat generated during gutta-percha removal versus combined gutta-percha removal and post channel preparation.

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    Main Results:

    • The greatest temperature rise, up to 31°C, occurred when gutta-percha removal was combined with post channel preparation.
    • Instruments solely removing gutta-percha generated less heat.
    • Engine-driven drills for post channel preparation were associated with significant temperature increases.

    Conclusions:

    • Engine-driven drills used for post space preparation can generate substantial heat.
    • These temperature rises may pose a risk of periradicular tissue damage.
    • Clinical caution is recommended when utilizing engine-driven drills for post space preparation.