Push Out Bond Strength and Adaptation of MTA-Based Root Canal Sealers to Dentin with or Without Gutta-Percha: In vitro-Study
DOI:
https://doi.org/10.15517/jth6x974Keywords:
Adaptation; Gutta-percha; MTA-based sealers; Push-out bond strength; Resin-based sealers.Abstract
This in vitro study investigated the push-out bond strength and adaptation of three root canal sealers AH Plus Jet (epoxy resin-based), MTA Fillapex, and EndoSeal Mineral Trioxide Aggregate (MTA) both with and without gutta-percha obturation, utilizing 90 straight, single-rooted teeth randomly assigned to groups and subgroups. Push-out bond strength was measured using an Instron universal testing machine, while adaptation was assessed via scanning electron microscopy, with statistical analysis performed using one-way ANOVA and Tukey's post-hoc test (p<0.05). EndoSeal MTA demonstrated the highest statistically significant push-out bond strength (p<0.001) in both conditions, though no significant difference existed between MTA Fillapex and AH Plus Jet without gutta-percha, where AH Plus Jet still showed higher bond strength at root levels than MTA Fillapex (p<0.001). While adaptation showed no significant differences among sealers with gutta-percha, AH Plus Jet achieved the lowest significant gap percentage in its absence. Ultimately, EndoSeal MTA exhibited the highest push-out bond strength overall, making its superior adhesion a promising choice for root canal obturation.
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