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Temperature rise at root surface during post-space preparation

A H Tjan1, M F Abbate

  • 1Department of Restorative Dentistry, School of Dentistry, Loma Linda University, Calif.

The Journal of Prosthetic Dentistry
|January 1, 1993
PubMed
Summary

This study investigated root surface temperature changes during post-space preparation with various instruments. Peeso reamers generated the highest heat, while Gates-Glidden and Para-Post systems produced the lowest temperature increases.

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Area of Science:

  • Endodontics and Restorative Dentistry
  • Biomaterials and Dental Technology

Background:

  • Post-space preparation is crucial for endodontic treatment success.
  • Excessive heat generated during this procedure can negatively impact the surrounding root dentin and periapical tissues.
  • Understanding the thermal effects of different instruments is vital for clinical safety.

Purpose of the Study:

  • To compare the temperature changes at the root surface of human central incisors during post-space preparation.
  • To evaluate the thermal output of five different instruments: Peeso reamers, Kurer system, Gates-Glidden drills, Para-Post drills, and diamond burs.

Main Methods:

  • Extracted human central incisors were used for the study.
  • Post-space preparation was performed using each of the five specified instruments.

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  • Temperature at the root surface was monitored and recorded, noting the rise from a baseline of approximately 28°C.

    • Main Results:

    • A mean temperature increase ranging from 2.3°C to 15.6°C was observed.
    • Peeso reamers resulted in the highest mean temperature rise.
    • Kurer system and diamond burs showed intermediate temperature increases, while Gates-Glidden and Para-Post systems exhibited the lowest temperature increases.

    Conclusions:

    • The choice of instrument significantly influences the heat generated during post-space preparation.
    • Peeso reamers and Kurer systems pose a higher risk of thermal damage compared to Gates-Glidden and Para-Post systems.
    • Clinicians should be aware of the thermal potential of different instruments to minimize risks to the tooth structure and periapical environment.