Rebolloso De Barrio, ElenaPérez-Higueras Sánchez-Escalonilla, JuanGarcía Barbero, ErnestoGancedo Caravia, Lucía2026-02-252026-02-252021-11-19Rebolloso de Barrio E, Pérez-Higueras JJ, García-Barbero E, Gancedo-Caravia L. Effect of exposure to etidronic acid on the bond strength of calcium silicate-based cements after 1 and 21 days: an in vitro study. BMC Oral Health. 2021 Nov 19;21(1):591. doi: 10.1186/s12903-021-01959-510.1186/s12903-021-01959-5https://hdl.handle.net/20.500.14352/133302Background: After reparation of root perforations with calcium silicate-based cements (CSBC), the surface of the material is expected to be exposed to root canal irrigants (RCI) while resuming the root canal treatment. Methods: The aim of this study was to compare the effect of exposure to a mixture of sodium hypochlorite (NaOCl) and etidronic acid (HEBP) or other irrigants on the Push Out Bond Strength (POBS) of CSBC after two different setting times. 240 root slices 1 mm thick were obtained from single-rooted human teeth. A 1.4 mm diameter perforation was performed on each slice and filled with Biodentine (BD) or ProRoot MTA (PMTA). After 1 or 21 days they were exposed to 17% ethylenediaminetetraacetic acid, 5.25% NaOCl, a mixture of 5.25% NaOCl and 9% HEBP (NaOCl + HEBP) or saline (n = 15) and submitted to a push-out test. POBS results were analysed with ANOVA and Tukey tests. Results: BD showed higher POBS than PMTA after 1 day (p < .05). After 21 days no differences were found between materials. After 1 day exposure to NaOCl + HEBP resulted in higher POBS, compared to the other irrigants (p < .05). Conclusion: POBS results are influenced by the cement, the setting time and the exposure to irrigants.engAttribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/journal article1472-6831https://doi.org/10.1186/s12903-021-01959-534798880https://link.springer.com/article/10.1186/s12903-021-01959-5https://pubmed.ncbi.nlm.nih.gov/34798880/open access616.314.018:615.46Bond strengthCalcium silicate cementsEtidronic acidRoot canal irrigantsSetting timeOdontología (Odontología)EndodonciaAparatos y material odontológicos3213.13 Ortodoncia-Estomatología3311.03 Instrumentos Para Odontología