Bond strength of calcium silicate based bioceramic sealers to dentin
Tomaszewska, Marta Agnieszka
MetadataShow full item record
OBJECTIVE: The aim of this study was to compare available bioceramic sealers and resin based sealer on their push out and shear bond strength. MATERIALS AND METHODS: Three calcium silicate based bioceramic sealers: Endosequence BC sealer (Brasseler), BioRoot RCS (Septodont) and Edge Bioceramic Sealer (EdgeEndo) and one resin based sealer (AH Plus) were included in this study. Twelve single rooted teeth were decoronated, treated, and obturated with one of the tested sealers (n=3). After one-week incubation, teeth were sectioned into 1 mm thick slices and submitted to push out bond strength test on a universal testing machine. 48 teeth were sectioned horizontally to uncover the dentin and embedded in epoxy resin (n=12 per sealer). Polyethylene tubes (3 mm diameter) placed on the dentin were filled with one of the tested sealers. After one-week incubation, specimens were submitted to a shear bond strength test. Data was analyzed by one-way ANOVA and all pairs comparison using Tukey-Kramer HSD test with the alpha set as 0.05. RESULTS: The calculated mean push out bond strengths were 4.48±2.23 MPa, 3.19±2.61 MPa, 2.82±1.70 MPa and 7.56±5.09 MPa for BioRoot RCS, Endosequence BC Sealer, Edge Bioceramic Sealer and AH Plus respectively, while the shear bond strengths were 8.56±4.55 MPa, 5.52±4.38 MPa, 3.93±2.64 MPa and 36.71±14.39MPa in the same order. CONCLUSION: With the limitation of this study we concluded that bioceramic sealers present lower bond strength than resin based sealer and that there is no significantly different bond strength to root dentin amongst bioceramic sealers themselves.