Silica coating followed by heat-treatment of MDP-primer for resin bond stability to yttria-stabilized zirconia polycrystals.

Title Silica coating followed by heat-treatment of MDP-primer for resin bond stability to yttria-stabilized zirconia polycrystals.
Authors A.M.O. Dal Piva; R.L.A. Carvalho; A.L. Lima; M.A. Bottino; R.M. Melo; L.Felipe Valandro
Journal J Biomed Mater Res B Appl Biomater
DOI 10.1002/jbm.b.34100
Abstract

This study evaluated the influence of silica coating, primer type and its heat treatment on bond strength durability between resin cement and an yttrium-stabilized polycrystalline tetragonal zirconia (Y-TZP). Eighty (80) Y-TZP blocks were allocated into 16 groups considering four factors: silica coating (without and with); type of primer (RelyX Ceramic Primer, a silane-based primer; Single Bond Universal, a universal MDP-based primer); heat treatment of the primer (without and with); aging (without and with). After zirconia treatments, resin cement cylinders (RelyX ARC) (n?=?20; N?=?320) were built. Half of the samples were tested after 24 h, and another half were subjected to aging (thermocycling 5-55°C/5.000, and storage in water for 6 months). Shear bond strength test and failure analysis were performed. Bond strength data were submitted to four-way ANOVA and Tukey test (p?=?0.05). All factors were statistically significant (p??no-treatment (3.6?±?4.3); universal primer (6.7?±?4.8)?>?silane (4.2?±?5.8); heat-treatment (6.5?±?6.3)?>?no-heating (4.4?±?4.3); no-aging (8.2?±?5)?>?aging (2.7?±?4.4). Tukey test revealed that the association of silica coating?+?universal primer?+?heat-treatment promoted higher and stable resin bond strength. Silica coating, universal adhesive application and heat treatment improve/increase durability and bond strength of zirconia. © 2018 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 2018.

Citation A.M.O. Dal Piva; R.L.A. Carvalho; A.L. Lima; M.A. Bottino; R.M. Melo; L.Felipe Valandro.Silica coating followed by heat-treatment of MDP-primer for resin bond stability to yttria-stabilized zirconia polycrystals.. J Biomed Mater Res Part B Appl Biomater. 2018. doi:10.1002/jbm.b.34100

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