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Related Experiment Videos

Microleakage of resected MTA.

Wallis E Andelin1, David F Browning, G-Hong Robert Hsu

  • 1Department of Endodontics, Loma Linda University School of Dentistry, CA 92350, USA.

Journal of Endodontics
|August 20, 2002
PubMed
Summary

Resected mineral trioxide aggregate (MTA) demonstrated excellent sealing ability, comparable to non-resected MTA. This study suggests that root-end resection does not compromise MTA’s effectiveness in preventing dye leakage.

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Area of Science:

  • Endodontics
  • Dental Materials Science

Background:

  • Mineral trioxide aggregate (MTA) is a widely used biomaterial in endodontic procedures.
  • Assessing the sealing ability of MTA after root-end resection is crucial for treatment success.

Purpose of the Study:

  • To evaluate the sealing ability of MTA when resected after orthograde or retrograde placement.
  • To compare the sealing efficacy of resected MTA versus non-resected MTA.

Main Methods:

  • Human teeth were obturated with MTA (orthograde) or gutta-percha/sealer (warm vertical compaction).
  • Root ends were resected, and Group 2 received MTA as a retrograde filling.
  • Dye leakage was assessed using India ink after 48 hours.

Main Results:

Related Experiment Videos

  • No discernible dye leakage was observed in teeth with resected MTA or retrograde MTA fillings.
  • No significant difference in dye leakage was found between resected MTA (Group 1) and non-resected MTA (Group 2).

    • Conclusions:

    • Resection of set MTA does not negatively impact its sealing ability.
    • MTA exhibits effective sealing properties regardless of root-end resection in endodontic treatments.