Effect of exposure to root canal irrigants on the push-out bond strength of calcium silicate-based cements.

Rebolloso De Barrio, ElenaGancedo Caravia, LucíaGarcía Barbero, ErnestoPérez-Higueras Sánchez-Escalonilla, Juan2026-02-252026-02-252020-10-28Rebolloso de Barrio E, Gancedo-Caravia L, García-Barbero E, Pérez-Higueras JJ. Effect of exposure to root canal irrigants on the push-out bond strength of calcium silicate-based cements. Clin Oral Investig. 2021;25(5):3267-3274. doi:10.1007/s00784-020-03658-x1432-698110.1007/s00784-020-03658-xhttps://hdl.handle.net/20.500.14352/133301Objectives: The aim of this study was to compare the push-out bond strength (POBS) of three calcium silicate-based cements (CSBC) after exposure to saline, sodium hypochlorite (NaOCl), ethylenediaminetetraacetic acid (EDTA), and a mixture of NaOCl and etidronic acid (NaOCl+HEBP) in simulated perforation. Materials and methods: A total of 180 dentin slices were perforated and then filled with either Biodentine (BD), ProRoot MTA (PMTA), or Total Fill (TF). After 1 week, specimens in each group were divided into 4 subgroups (n = 15) according to the root canal irrigant (RCI) that their coronal surface was exposed to: saline, 5.25% NaOCl, 17% EDTA, or a mixture of 5.25% NaOCl and 9% HEBP (NaOCl+HEBP). A push-out test was performed, and the failure pattern was assessed. POBS data were analyzed with ANOVA and Tukey post hoc tests and the failure patterns with chi-square test. Results: No differences were found when comparing the effect of RCI on the POBS of PMTA. BD showed significantly higher POBS values after exposure to NaOCl+HEBP (p < .05), and those of TF were significantly lower after exposure to EDTA (p < .05). No differences in the failure patterns were found among groups. Conclusion: NaOCl+HEBP had no detrimental effect on the POBS of CSBC. Clinical relevance: The mixture of sodium hypochlorite and etidronic acid may be considered as an alternative irrigant when treating root perforations.engEffect of exposure to root canal irrigants on the push-out bond strength of calcium silicate-based cements.journal article1436-3771https://doi.org/10.1007/s00784-020-03658-x33118077https://link.springer.com/article/10.1007/s00784-020-03658-xhttps://pubmed.ncbi.nlm.nih.gov/33118077/restricted access616.314.018:615.46BiodentineEtidronic acidMTAPush-out bond strengthRoot canal irrigantsTotal FillOdontología (Odontología)EndodonciaAparatos y material odontológicos3213.13 Ortodoncia-Estomatología3311.03 Instrumentos Para Odontología