Bond Strength of Resin Modified Glass Ionomer Cement and Resin Composite to Four Pulp Capping Biomaterials
Journal Title: IOSR Journal of Dental and Medical Sciences (IOSR-JDMS) - Year 2017, Vol 16, Issue 12
Abstract
Objective: The purpose of this in vitro study centred on assessing the shear bond strength (SBS) of four pulpcapping biomaterials, namely two resin-modified glass-ionomer/Photac Fil/Fuji II LC, calciumhydroxide/Urbical LC, and mineral trioxide aggregate/ProRoot to resin composite/Filtek Z250 XT and Photac Fil, with and without surface treatment. Methods: Forty-eight specimens from each restorative material were prepared for each pulp capping biomaterials. Each group was divided into four individual subgroups of 12, with each one in line with the restorative material (Filtek Z250 XT and Photac Fil) and the surface treatment (with or without phosphoric acid etchant and polyacrylic acid conditioner). The measurement of shear bond-strength was carried out through the application of a universal testing machine at across head speed 0.5 mm/min. The analysis of the data was carried out through the application of a one-way ANOVA and a post hoc Tukey’s test (P<0.05). Results: For Filtek Z250 XT etched with phosphoric acid, the highest (mean+SD) SBS was recorded for Photac Fil (23.700+1.258) whereas the lowest SBS was recorded for ProRoot (4.241+0.560). For Filtek Z250 XT without phosphoric acid etching, the highest SBS was recorded for Photac Fil (18.642+0.871) while the lowest SBS was recorded for ProRoot (4.067+0.551). For Photac Fil etched with polyacrylic acid conditioner the highest and lowest SBS were recorded for Photac Fil (20.498+0.890) and ProRoot (4.733+0.501). For Photac Fil without polyacrylic acid conditioner etching the highest and lowest SBS were recorded for Photac Fil (16.345+0.722) and ProRoot (4.405+0.757). A significant difference in the shear bond strength was identified between subgroups of Photac Fil, Fuji II LC, and Urbical LC (P=0.0001), although this was not significant between ProRoot subgroups (P=0.291). Conclusions: The Photac Fil etched with polyacrylic acid conditioner and Filtek Z250 XT etched with phosphoric acidexhibited higher shear bond strength compared to non-surface treatment. For Photac Fil and Filtek Z250 XT with and without surface treatment, ProRoot (mineral trioxide aggregate) demonstrated low shear bond strength
Authors and Affiliations
Fouad Salama, Fahad Alahaidib, Mohammed AlShamrani, Latifa Alhowaish, Rehab Allam
Keywords
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- EP ID EP250829
- DOI 10.9790/0853-1612076875
- Views 89
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