World Journal of Dentistry

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VOLUME 3 , ISSUE 2 ( April-June, 2012 ) > List of Articles

RESEARCH ARTICLE

Effectiveness of Silorane-based Composite as a Repair Filling for Dimethacrylate- or Silorane-based Composite Restorations

Daphne Câmara Barcellos, Cesar Rogério Pucci, Carlos Rocha Gomes Torres, Sergio Eduardo de Paiva Gonçalves, Patricia Rondon Pleffken, Clovis Pagani

Citation Information : Barcellos DC, Pucci CR, Torres CR, de Paiva Gonçalves SE, Pleffken PR, Pagani C. Effectiveness of Silorane-based Composite as a Repair Filling for Dimethacrylate- or Silorane-based Composite Restorations. World J Dent 2012; 3 (2):161-165.

DOI: 10.5005/jp-journals-10015-1149

Published Online: 01-06-2012

Copyright Statement:  Copyright © 2012; The Author(s).


Abstract

Objective

This study aimed to evaluate the suitability of one specific silorane-based composite for the application as a repair material for different substrates.

Materials and methods

Truncated cones of composites fabricated and thermocycled for 6000 cycles to serve as a substrate were made of two commercially available dimethacrylate-based composites (DBC) (Filtek Supreme and Clearfil APX) and one silorane-based composite (SBC) (Filtek P90). The surface of the specimens was treated with air-abraded using Al2O3-particles of 50 µm size. A Teflon device was used to fabricate inverted truncated cones of repair composite over the surface-treated top of each original truncated cone. DBC and SBC were used as repair materials and bonded to the specimens using either a dimethacrylate-based (single bond 2) or a phosphate-methacrylate-based (adhesive belongs to the silorane) adhesives. The specimens were stored in distilled water at 37°C for 7 days and stressed to failure under tension. The data were analyzed with one-way ANOVA and Tukey tests at 5%.

Results

Bonding DBC as a repair material to a DBC substrate using the dimethacrylate-based adhesive produced the highest bond strength. Bonding DBC as repair material using the phosphate-methacrylate-based adhesive or SBC as repair material using the dimethacrylate-based adhesive produced lower bond strength, regardless the brand and of the chemical formulation of the aged substrate.

Conclusion

In order to obtain high bond strength, there is need to match adhesive and repair material, regardless the brand and of the chemical formulation of the substrate.

How to cite this article

Barcellos DC, Pleffken PR, Pucci CR, Pagani C, Gonçalves SEP, Torres CRG. Effectiveness of Silorane-based Composite as a Repair Filling for Dimethacrylate- or Silorane-based Composite Restorations. World J Dent 2012;3(2):161-65.


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