Push-out bond strength of fiberglass posts cemented with adhesive and self-adhesive resin cements according to the root canal surface

Jefferson Ricardo Pereira; Saulo Pamato; Manuela Favarin Santini; Vinicius Carvalho Porto; Weber Adad Ricci; Marcus Vinícius Reis Só

doi:10.1016/j.sdentj.2019.11.009

Push-out bond strength of fiberglass posts cemented with adhesive and self-adhesive resin cements according to the root canal surface

Saudi Dent J. 2021 Jan;33(1):22-26. doi: 10.1016/j.sdentj.2019.11.009. Epub 2019 Nov 28.

Authors

Jefferson Ricardo Pereira¹, Saulo Pamato¹, Manuela Favarin Santini², Vinicius Carvalho Porto³, Weber Adad Ricci⁴, Marcus Vinícius Reis Só²

Affiliations

¹ Postgraduate Program of Health Sciences, University of Southern Santa Catarina, Tubarão, Brazil.
² Department of Conservative Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, Brazil.
³ Department of Prosthodontics, University of São Paulo, Bauru, Brazil.
⁴ Department of Prosthodontics, Paulista State University at Araraquara, Araraquara, Brazil.

Abstract

Evaluating the bond strength of fiberglass posts cemented with different resin cements.

Materials and methods: Seventy freshly extracted roots of healthy human canines were endodontically treated and prepared to receive fiberglass posts. The roots were randomly divided into seven groups: (G1) RelyX ARC, (G2) Enforce, (G3) BisCem, (G4) Duo-Link, (G5) Cement Post, (G6) Variolink II, and (G7) RelyX U200. After post cementation, the specimens were sectioned perpendicularly to the root axis using a high-speed diamond disc, totaling 340 specimens. The strength values obtained in the push-out test were submitted to two-factor ANOVA and Tukey test (p = 0.05).

Results: The root thirds (p = 0.001) and the type of cement (p = 0.001) influenced the bond strength values. The relation between these two factors was also significant (p = 0.011).

Conclusions: The bond strength of self-adhesive resin cements was significantly higher as compared to other cements. Besides the cervical third in roots cemented with conventional cements types presented the highest bond strength values (p < 0.05).

Keywords: Bond strength; Dentin surface; Fiberglass post; Resin cement; Self-adhesive.