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ORIGINAL ARTICLE
Year : 2015  |  Volume : 15  |  Issue : 4  |  Page : 308-312

Evaluation and comparison of the effect of different surface treatment modifications on the shear bond strength of a resin cement to titanium: An in vitro study


Department of Prosthodontics, M R Ambedkar Dental College and Hospital, Bengaluru, Karnataka, India

Correspondence Address:
Tahsin Mansur Veljee
134, Landscape Pinto Park, D. B. Marg, Campal, Panaji - 403 001, Goa
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0972-4052.161072

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The purpose of this study was to evaluate and compare the effect of grit blasting, chemical treatment, and application of alloy primer combinations on the shear bond strength (SBS) of a self-cure resin cement to titanium surface. Materials and Methods: Fifty cast commercially pure titanium discs (9 mm × 2 mm) were divided into five groups (n = 10), which received the following surface treatments: Control group (no surface treatment), group 1 (grit blasting using 110 µm Al2O3particles and application of alloy primer), group 2 (grit blasting using 110 µm Al2O3particles and chemical treatment using 1N HCl), group 3 (chemical treatment using 1N HCl and application of alloy primer), and group 4 (Grit blasting using 110 µm Al2O3particles, chemical treatment using 1N HCl and application of alloy primer). Superbond C and B resin cement was applied to the treated titanium surfaces including controls. SBSs were determined after thermocycling for 5000 cycles. Data (megapascal) were analyzed by ANOVA and Bonferroni test. Results: Group 4 (grit blasting using 110 µm Al2O3particles, chemical treatment using 1N hydrochloric acid, and application of alloy primer) produced the highest bond strength followed by group 1, group 3, group 2, and the control group which showed the least bond strength. Conclusion: (1) Air-abrasion with alumina particles increases the micromechanical retention of the resin to titanium. (2) The alloy primer promotes wettability, which increases the adhesive bonding of resin cement to titanium. (3) Chemical treatment using hydrochloric acid effectively pretreats the titanium surface thereby increasing the SBS values.


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