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Related Experiment Videos

A new quantitative method using glucose for analysis of endodontic leakage.

Qiong Xu1, Ming-wen Fan, Bing Fan

  • 1School of Stomatology, Wuhan University, China.

Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontics
|December 16, 2004
PubMed
Summary

A new quantitative method effectively tested endodontic sealers. Pulp Canal Sealer EWT demonstrated higher leakage over time compared to Sealapex and AH Plus sealers.

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Area of Science:

  • Endodontics
  • Dental Materials Science
  • Biomaterials

Background:

  • Endodontic sealers are crucial for preventing bacterial microleakage.
  • Accurate quantitative methods are needed to evaluate sealer performance.
  • Previous leakage tests have limitations in sensitivity and clinical relevance.

Purpose of the Study:

  • Introduce a novel quantitative method for assessing endodontic leakage.
  • Compare the sealing ability of three different endodontic sealers.
  • Evaluate the long-term performance of sealers under hydrostatic pressure.

Main Methods:

  • Eighty maxillary anterior teeth were divided into three experimental and two control groups.
  • Teeth were prepared using a modified double-flared technique and obturated with gutta-percha and one of three sealers (Pulp Canal Sealer EWT, Sealapex, AH Plus).

Related Experiment Videos

  • A quantitative leakage test measured glucose concentration in the apical reservoir over 30 days using an enzymatic method.

    • Main Results:

    • No significant differences in sealing ability were observed among the three sealer groups within the first 7 days.
    • Pulp Canal Sealer EWT exhibited significantly higher leakage from day 10 onwards.
    • Sealapex and AH Plus showed comparable sealing performance throughout the study period.

    Conclusions:

    • The developed quantitative method is sensitive, non-destructive, and clinically relevant for evaluating endodontic sealers.
    • Pulp Canal Sealer EWT demonstrated inferior sealing ability compared to Sealapex and AH Plus in the long term.
    • Sealapex and AH Plus are potentially more reliable choices for endodontic obturation based on this leakage evaluation.