Bond strength of glass fiber posts using different endodontic treatments

Authors

Keywords:

root canal preparation, tensile strength, glass fiber post.

Abstract

Introduction: Glass fiber posts have been widely used for the reconstruction of elements with excessive dental structure loss.

Objective: Evaluate the bond strength of glass fiber posts after various root dentin treatments in different regions (cervical, middle and apical thirds).

Methods: An experimental in vitro study was conducted. Forty bovine teeth were selected, prepared and distributed into four groups according to the surface treatment used: (1) adhesive, (2) chelating agent, (3) polyacrylic acid, (4) not treated. The glass fiber posts were cemented with self-etch resin cement. After 20 days, each root was sectioned crosswise into three slices (1 mm in thickness) obtained from three regions. Bond strength was determined in each section with a push-out bond strength test. Flexural strength data (MPa) were analyzed with ANOVA and Tukey's tests.

Results: In the cervical portion, the group with previous polyacrylic acid treatment displayed lower push-out strength than the group without previous treatment. The group with application of the adhesive system (28.89 ± 6.64 MPa) and the group with previous EDTA treatment (21.58 ± 6.39 MPa) did not exhibit any statistically significant differences in comparison with the group without previous treatment (control group) in the cervical third. In the middle and apical portions, the group treated with the adhesive Ambar® of FGM Dental Group showed higher bond values in comparison with the other groups.

Conclusion: Previous adhesive application increased bond strength in the middle and apical thirds in comparison with the other groups, and may thus have a beneficial effect on the clinical success of the restorative treatment.

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Author Biographies

Robinsom Viégas Montenegro, Universidade Federal da Paraíba, Departamento de Odontologia Restauradora. João Pessoa, Paraíba, Brasil.

Universidade Federal da Paraíba, Departamento de Odontologia Restauradora, João Pessoa, Paraíba, Brasil.

Nathalie Murielly Rolim Abreu, Universidade Federal da Paraíba, Departamento de Odontologia Restauradora. João Pessoa, Paraíba, Brasil.

Universidade Federal da Paraíba, Faculdade de Odontologia, João Pessoa, Paraíba, Brasil.

Priscilla Kelly Batista da Silva Leite, Faculdade Facene, João Pessoa, Paraíba, Brasil.

Faculdade Facene, João Pessoa, Paraíba, Brasil. 

Raquel Venâncio Fernandes Dantas, Universidade Federal da Paraíba, Departamento de Odontologia Restauradora. João Pessoa, Paraíba, Brasil.

Universidade Federal da Paraíba, Departamento de Odontologia Restauradora, João Pessoa, Paraíba, Brasil. 

Ana karina Maciel de Andrade, Universidade Federal da Paraíba, Departamento de Odontologia Restauradora. João Pessoa, Paraíba, Brasil.

Universidade Federal da Paraíba, Departamento de Odontologia Restauradora, João Pessoa, Paraíba, Brasil. 

André Ulisses Dantas Batista, Universidade Federal da Paraíba, Departamento de Odontologia Restauradora. João Pessoa, Paraíba, Brasil.

Universidade Federal da Paraíba, Departamento de Odontologia Restauradora, João Pessoa, Paraíba, Brasil. 

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Published

2020-09-30

How to Cite

1.
Montenegro RV, Abreu NMR, Leite PKB da S, Dantas RVF, de Andrade A karina M, Batista AUD. Bond strength of glass fiber posts using different endodontic treatments. Rev Cubana Estomatol [Internet]. 2020 Sep. 30 [cited 2025 Apr. 25];57(4):e3076. Available from: https://revestomatologia.sld.cu/index.php/est/article/view/3076

Issue

Vol. 57 No. 4 (2020): OCT- DEC

Section

Research Article

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