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Comparative study of the wear behavior of composites for posterior restorations

  • Cecilia P. TurssiEmail author
  • Juliana J. Faraoni-Romano
  • Márcio de Menezes
  • Mônica C. Serra
Article

Abstract

This investigation sought to compare the abrasive wear rates of resin composites designed for posterior applications. Seventy-five specimens were fabricated with conventional hybrid (Charisma and Filtek Z250) or packable composites (Filtek P60, Solitaire II and Tetric Ceram HB), according to a randomized complete block design (n = 15). Specimens were finished and polished metallographically and subjected to abrasive wear which was performed under a normal load of 13N at a frequency of 2 Hz using a pneumatic device (MSM/Elquip) in the presence of a mucin-containing artificial saliva. Wear was quantified profilometrically in five different locations of each specimen after 1,000, 5,000, 10,000, 50,000 and after every each 50,000 through 250,000 cycles. A split-plot ANOVA showed a significant difference between the wear resistance of composites (α = 0.05). Tukey’s test ascertained that while the composites Filtek Z250 and Charisma wore significantly less than any other of the materials tested, Tetric Ceram HB experienced the greatest wear rates. Filtek P60 and Solitaire II showed intermediate rates of material removal. The wear pattern of composites proved to be biphasic with the primary phase having the faster wear rate. In conclusion, packable resin composites may not have superior wear compared to conventional hybrid composites.

Keywords

Wear Resistance Wear Rate Abrasive Wear Resin Composite Wear Depth 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science + Business Media, LLC 2006

Authors and Affiliations

  • Cecilia P. Turssi
    • 1
    Email author
  • Juliana J. Faraoni-Romano
    • 2
  • Márcio de Menezes
    • 2
  • Mônica C. Serra
    • 2
  1. 1.Departamento de Odontologia Restauradora—FORP/USP Av. do Cafés/n, Ribeirão PretoSPBrazil
  2. 2.Department of Restorative Dentistry, School of Dentistry of Ribeirão PretoUniversity of São Paulo (USP)Brazil

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