Evaluation of biaxial flexural strength and modulus of filled and unfilled adhesive systems

Authors

  • Michele Santana Liberti FOP/UNICAMP
  • Donald Mettenburg Medical College of Georgia
  • César Augusto Galvão Arrais Universidade de Guarulhos
  • Frederick Allen Rueggeberg Medical College of georgia
  • Marcelo Giannini FOP/UNICAMP

Keywords:

Dentin-bonding agents, flexural strength, flexural modulus

Abstract

Purpose: The purpose of this study was to evaluate the flexural strength and modulus of two adhesive systems using biaxial flexural strength test. Methods: The bonding agents (Pentron Clinical Technologies) tested were: Bond 1 (B1) and NanoBond (NB). Thirteen disks (6.1 mm diameter and 0.6 mm thick) were prepared with adhesive solutions of each bonding agents using Teflon molds. The adhesive solutions within the molds were light-activated with XL 3000 curing unit (3M ESPE) for 10 s on both sides. The disks were stored for 10 days and were tested in a universal testing machine (1.27 mm/min – Instron 5844). Data were statistically analyzed by one-way ANOVA (α=0.05). Results: The mean values of fracture strength (±SD) for adhesive systems were (in MPa): B1- 89.7±7.6 e NB- 131.1±9.5. Modulus means (±SD) were (in MPa): B1- 1999.9±258.4 e NB- 2314.5±271.0. Conclusion: The filled adhesive system (NB) exhibited higher strength and flexural modulus means than the unfilled adhesive B1. Key words: Dentin-bonding agents; flexural strength; flexural modulus

Author Biographies

Michele Santana Liberti, FOP/UNICAMP

Departamento de Odontoogia Restauradora - Área de Dentística

Donald Mettenburg, Medical College of Georgia

Departamento de Reabilitação Oral

César Augusto Galvão Arrais, Universidade de Guarulhos

Departamento de Dentística

Frederick Allen Rueggeberg, Medical College of georgia

Departamento de Reabilitação Oral

Marcelo Giannini, FOP/UNICAMP

Departamento de Odontoogia Restauradora - Área de Dentística

Downloads

Published

2008-12-03

Issue

Vol. 24 No. 1 (2009)

Section

Original Article

License

COPYRIGHT
The submission of originals to Odonto Ciência implies the transfer by the authors of the right for publication. Authors retain copyright and grant the journal right of first publication. If the authors wish to include the same data into another publication, they must cite Odonto Ciência as the site of original publication.

CREATIVE COMMONS LICENSE
As this journal is open access, the articles are allowed free use in scientific and educational applications, with citation of the source.
According to the type of Creative Commons License (CC-BY 4.0) adopted by Odonto Ciência, the user must respect the requirements below.

You are free to:
Share — copy and redistribute the material in any medium or format.
Adapt — remix, transform, and build upon the material for any purpose, even commercially.

However, only under the following terms:
Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests Odonto Ciência endorses you or your use.
No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.

Notices:
You do not have to comply with the license for elements of the material in the public domain or where your use is permitted by an applicable exception or limitation.
No warranties are given. The license may not give you all of the permissions necessary for your intended use. For example, other rights such as publicity, privacy, or moral rights may limit how you use the material.

For more details on the Creative Commons license, please follow the link in the footer of this website.