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Influence of different surface treatments of fiberglass posts on the bond strength to dentin


Dentin-bonding agents. Dentin. Denture retention.

How to Cite

Rechia BC do N, Bravo RP, Oliveira ND de, Baratto Filho F, Gonzaga CC, Storrer CLM. Influence of different surface treatments of fiberglass posts on the bond strength to dentin. Braz. J. Oral Sci. [Internet]. 2017 Apr. 20 [cited 2024 May 22];15(2):158-62. Available from:


Aim: To assess the influence of different fiberglass post surface treatments on the bond strength (BS) to root dentin. Methods: Thirty bovine root canals were endodontically treated and filled with gutta-percha and AH Plus sealer. At 24 h after the endodontic filling, the post spaces were prepared with Gates-Glidden drills and #3 drills of the DC White Post system, maintaining a 4 mm apical seal. The roots were randomly divided into three groups: S (fiberglass posts treated with silane), SA (fiberglass posts treated with silane and a hydrophobic adhesive system) and SHA (fiberglass posts treated with silane, followed by drying with hot air). The posts were cemented with a selfadhesive cement (RelyX U200). The specimens were stored in distilled water at 37 °C for 24 h and subjected to the push-out test (0.5 mm/min). Data were statistically analyzed using one-way ANOVA and Tukey's test (α=0.05) Results: SA and SHA groups showed the highest BS mean values (11.29 and 10.85 MPa, respectively), while the S group presented the lowest BS mean value (7.21 MPa). S group was significantly different from SA and SAH groups. Conclusions: The surface treatment of fiberglass posts influenced BS values.


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