The effect of the gap between the cast post and residual gutta-percha and cement type on microleakage of endodontically treated teeth using the fluid filtration method

Abstract

Background: The aim of this study was to investigate the impact of the distance between the
gutta-percha and the post, as well as the type of cement used, on the incidence of microleakage
in endodontically treated teeth.
Materials and Methods: This experimental-laboratory study involved 72 single-canal, single-rooted
teeth, which were randomly sorted into six study groups and two control groups, each containing
nine teeth. The six groups were further divided based on the distance between gutta-percha and post
(0 mm, 0–2 mm, and >2 mm) and then categorized by cement type into glass ionomers and resins.
Microleakage was evaluated using the fluid filtration method at 15 and 30 days. Data were analyzed using
SPSS software, employing between-subjects effects and post hoc Tukey tests at a 5% significance level.
Results: Cement type did not significantly affect microleakage (P = 0.598). However, microleakage
increased significantly with larger gaps between the post and remaining gutta-percha (P = 0.002).
No significant difference in microleakage was observed between the gapless and ≤2 mm groups
(P = 0.328). Similarly, ≤2 mm and >2 mm groups did not show any notable difference (P = 0.054).
However, the difference in microleakage between the gapless group and the ≥2 mm gap group was
significant (P = 0.001).
Conclusion: This study found no significant difference in microleakage between glass ionomers
and resin cements. Only gaps >2 mm significantly affected microleakage.
Key Words: Dental cements, dental leakage, endodontically treated teeth, fluid filtration,root canal therapy

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Sharare Jahangiri: Pubmed,Google Scholar