Elena Rebolloso de Barrio1, Lucía Gancedo-Caravia2, Ernesto García-Barbero1, Juan José Pérez-Higueras1. 1. Departamento de Odontología Conservadora y Prótesis Bucofacial, Facultad de Odontología, Universidad Complutense de Madrid, Pza. Ramón y Cajal, s/n. Ciudad Universitaria, 28040, Madrid, Spain. 2. Departamento de Odontología Conservadora y Prótesis Bucofacial, Facultad de Odontología, Universidad Complutense de Madrid, Pza. Ramón y Cajal, s/n. Ciudad Universitaria, 28040, Madrid, Spain. lgancedo@ucm.es.
Abstract
OBJECTIVES: 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.
OBJECTIVES: 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.
Entities:
Keywords:
Biodentine; Etidronic acid; MTA; Push-out bond strength; Root canal irrigants; Total Fill
Authors: Elena Rebolloso de Barrio; Juan José Pérez-Higueras; Ernesto García-Barbero; Lucía Gancedo-Caravia Journal: BMC Oral Health Date: 2021-11-19 Impact factor: 2.757