Effect of exposure to root canal irrigants on the push-out bond strength of calcium silicate-based cements
| Autor: | Ernesto García-Barbero, Juan José Pérez-Higueras, Lucía Gancedo-Caravia, Elena Rebolloso de Barrio |
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| Rok vydání: | 2020 |
| Předmět: |
Dental Stress Analysis
Root Canal Irrigants Bond strength Sodium Hypochlorite medicine.medical_treatment Silicates Perforation (oil well) Dental Bonding Ethylenediaminetetraacetic acid Etidronic acid Calcium Compounds chemistry.chemical_compound medicine.anatomical_structure chemistry Sodium hypochlorite Calcium silicate Dentin medicine Dental Pulp Cavity General Dentistry Saline medicine.drug Nuclear chemistry |
| Zdroj: | Clinical oral investigations. 25(5) |
| ISSN: | 1436-3771 |
| Popis: | 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. 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. 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. NaOCl+HEBP had no detrimental effect on the POBS of CSBC. The mixture of sodium hypochlorite and etidronic acid may be considered as an alternative irrigant when treating root perforations. |
| Databáze: | OpenAIRE |
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