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Year : 2016  |  Volume : 19  |  Issue : 2  |  Page : 218-222

Influence of different surface treatments on push-out bond strengths of fiber-reinforced posts luted with dual-cure resin cement

1 Department of Endodontics, Faculty of Dentistry, Ataturk University, Erzurum 25040, Turkey
2 Department of Prosthodontics, Faculty of Dentistry, Ataturk University, Erzurum 25040, Turkey
3 Department of Endodontics, Faculty of Dentistry, Erciyes University, Kayseri 38039, Turkey
4 Department of Restorative Dentistry, Faculty of Dentistry, Akdeniz University, Antalya 07058, Turkey

Correspondence Address:
L B Ayranci
Department of Endodontics, Faculty of Dentistry, Atatürk University, Erzurum 25240
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/1119-3077.175962

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Objectives: The objective was to evaluate whether fiber postsurface conditioning with air abrasion or erbium:yttrium-aluminum-garnet (Er:YAG) laser would influence the bond strength of dual-cure resin cement to the fiber-reinforced (FRC) posts. Materials and Methods: Twenty-one FRC posts were divided into three groups according to surface treatment methods as follows: An untreated control group air abrasion with Al2O3group, and Er:YAG laser treated group with 150 mJ parameter. Fiber posts were then built up to dual-cure resin cement. Eighteen specimens were set and sectioned perpendicularly along the long axis of the post using a saw. Two disks (thickness of 2 mm) were obtained from each specimen (n = 12). Remaining three posts were stored for scanning electron microscopic evaluation. Push out test was performed on the each specimen and the values were recorded as MPa. The data were analyzed using one-way analysis of variance and Tukey post-hoc tests (P < 0.05). Results: The bond strength values for the groups were as follows: Control (15, 28 MPa), air abrasion group (19, 73 MPa), and Er:YAG group (17, 84 MPa). Air abrasion affected the bond strength significantly (P < 0.05). Conclusion: Air abrasion attained higher bond strengths when FRC posts were luted to dual-cure resin cement. Additional studies should be designed with different types and parameters of laser devices to understand the effect of these devices on bond strength.

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