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Effect of Surface Treatments on Tensile Bond Strength and on Morphology of Quartz-fiber Posts

2007; Elsevier BV; Volume: 33; Issue: 3 Linguagem: Inglês

10.1016/j.joen.2006.10.015

1878-3554

Camillo D’Arcangelo, Maurizio D’Amario, Gianni Domenico Prosperi, Marco Cinelli, Mario Giannoni, Sergio Caputi,

Dental Implant Techniques and Outcomes

This study evaluated the effect of three post surface treatments on quartz-fiber post (a) retention and (b) morphology. A control group was not treated. Different treatments were performed for the other posts: silanization; etching by hydrofluoric acid 9.5%; sandblasting with 50 μm Al2O3. Two specimens of each group were submitted to a qualitative scanning electron microscopy (SEM) analysis. Remaining specimens were luted in prepared root canals (n = 10) and retentions were determined using a universal testing machine. Retentive post bond strengths were significantly enhanced with any tested post surface pretreatment. The increase in retentive strength was more remarkable in sandblasted and etched posts. Significant changes of post surfaces were SEM observed after different conditioning treatments.