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Related Experiment Videos

Microleakage along apical root fillings and cemented posts

M K Wu1, Y Pehlivan, E G Kontakiotis

  • 1Department of Cariology Endodontology Pedodontology, Academic Center for Dentistry Amsterdam, The Netherlands.

The Journal of Prosthetic Dentistry
|April 29, 1998
PubMed
Summary
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Post space preparation increases apical root filling leakage. However, cemented posts may compensate for this increased leakage in endodontically treated teeth.

Area of Science:

  • Endodontics
  • Dental Materials

Background:

  • Coronal leakage in endodontically treated teeth leads to high failure rates.
  • Understanding leakage pathways is crucial for long-term restoration success.

Purpose of the Study:

  • To evaluate microleakage along apical root fillings after post space preparation.
  • To assess leakage around cemented posts in root canals.

Main Methods:

  • 120 human roots were divided into six groups.
  • A modified fluid transport model quantified leakage (microL/hr).
  • Leakage was compared between remaining apical root fillings and conventional fillings, and around cemented posts.

Main Results:

  • The apical 4 mm of root filling showed significantly more leakage than the original 11 mm filling (p=0.0325).

Related Experiment Videos

  • Cemented posts did not increase leakage compared to the coronal 7 mm of root filling (p=0.2145).

    • Conclusions:

    • Post space preparation results in statistically significant increased leakage in the apical root filling.
    • Cemented posts may effectively compensate for coronal leakage introduced during post space preparation.