Citation Information :
Aphiya A, Nayak M, M U A. Effect of Different Irrigation Protocols on Push-out Bond Strength of Calcium Silicate-based Root Canal Sealer to Dentin. World J Dent 2025; 16 (1):45-50.
Aim: To investigate the effect of different irrigation protocols on the push-out bond strength of calcium silicate-based root canal sealer to radicular dentin.
Materials and methods: The root canals of 32 single-rooted premolars were instrumented and randomly allocated into two groups (n = 16) according to the irrigation regimen: group I—irrigation with 17% ethylenediaminetetraacetic acid (EDTA), and group II—irrigation with 3 mL of QMix. Root canals were obturated with CeraSeal bioceramic root canal sealer and gutta-percha. Two-millimeter-thick horizontal sections from the coronal and middle thirds of each root were sliced for push-out bond strength measurement and evaluated using a universal testing machine. Data were statistically analyzed using analysis of variance (ANOVA), and comparisons between the groups were performed using Tukey's post hoc test in R Commander software.
Results: Statistically significant differences were observed between the two groups (p < 0.05). Samples irrigated with QMix solution showed increased push-out bond strength of calcium silicate-based root canal sealer to dentin compared to 17% EDTA solution.
Conclusion: The irrigation protocol with QMix resulted in higher push-out bond strength compared to irrigation with EDTA. Hence, the QMix irrigation protocol may be more beneficial in clinical scenarios to prevent endodontic failure related to obturation.
Clinical significance: Using QMix as an irrigation protocol may enhance endodontic success by improving sealer adhesion and minimizing obturation failure.
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