Composite resin repairs: What is the most effective protocol?

Authors

  • Alessandra Pereira Andrade School of Dentistry of University of São Paulo
  • Angela Mayumi Shimaoka School of Dentistry of University of São Paulo
  • Rubens Corte Real de Carvalho School of Dentistry of University of São Paulo

DOI:

https://doi.org/10.14295/bds.2017.v20i1.1375

Abstract

Objective: The objective of this study was to evaluate the combination effect of surface treatments and bonding agents on bond strength of repairs on aged composite resin. Materials and Methods: One hundred twenty microhybrid composite units (Filtek Z250) aged in distilled at 37ºC water for six months were submitted to different surface treatment prior to resin repairs. Ten specimens were randomly divided into 12 groups: non-treated/no bonding agent (negative control), sandblasting /no bonding agent, silane/no bonding agent, non-treated/ etch-and-rinse; non-treated/one-step self-etch; non-treated/ two-step self-etch; sandblasting/etch-and-rinse; sandblasting/one-step self-etch; sandblasting/two-step self-etch; silane coupling agent/etch-and-rinse; silane coupling agent/ one-step self-etch; silane coupling agent/two-step self-etch. Microshear testing was performed to bond strength assessment. Results: Two-way ANOVA and Tukey’s test (?=0.05) demonstrated significant difference between the surface treatments and adhesive systems. Only no treated surface/etch-and-rinse group showed lower bond strength values when compared to other groups. Conclusion: The considered surface treatments were capable to increase the effectiveness of the repair in composite resin when using the adhesive etch-and-rinse.

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Published

2017-03-24

How to Cite

1.
Andrade AP, Shimaoka AM, Carvalho RCR de. Composite resin repairs: What is the most effective protocol?. BDS [Internet]. 2017 Mar. 24 [cited 2025 Aug. 21];20(1):99-109. Available from: https://ojs.ict.unesp.br/index.php/cob/article/view/1375

Issue

Vol. 20 No. 1 (2017): Jan. - Mar. / 2017 - Published February 2017

Section

Clinical or Laboratorial Research

License

Brazilian Dental Science uses the Creative Commons (CC-BY 4.0) license, thus preserving the integrity of articles in an open access environment. The journal allows the author to retain publishing rights without restrictions.

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