Wear rates of resin composites

Wayne W. Barkmeier, R. L. Erickson, Mark A. Latta, T. M. Wilwerding

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

A laboratory study was conducted to examine the wear of resin composite materials using a generalized wear simulation model. Ten specimens each of five resin composites (Esthet*X [EX], Filtek Supreme Plus [SP], Filtek Z250 [Z2J, Tetric EvoCeram (EC], and Z100 Restorative [Zl]) were subjected to wear challenges of 100,000, 400,000, 800,000, and 1,200,000 cycles. The materials were placed in cylinder- shaped stainless-steel fixtures, and wear was generated using a flat stainless-steel antagonist in a slurry of polymethylmethacrylate beads. Wear (mean facet depth [μm] and volume loss [mm3) was determined using a non-contact profilometer (Proscan 2000) with Proscan and ProForm software. Statistical analysis of the laboratory data using analysis of variance and Tukey's post hoc test showed a significant difference (p2) ranging from 0.914 to 0.995. Mean wear values (mean facet depth [fim]) and standard deviations (SD) for 1200K cycles were as follows: Z1 13.9 (2.0), Z2 26.7 (2.7), SP 30.1 (4.1), EC 31.8 (2.3), and EX 67.5 (8.2). Volume loss (mm3) and SDs for 1200K cycles were as follows: Z1 0.248 (0.036), Z2 0.477 (0.044), SP 0.541 (0.072), EC 0.584 (0.037), and EX 1.162 (0.139). The wear rate (μm) and volume loss rate (mm1) per 100,000 cycles for the five resin composites were as follows: wear rate Z1 0.58, EC 1.27, Z2 1.49, SP 1.62, and EX 4.35, and volume loss rate Z1 0.009, EC 0.024, Z2 0.028, SP 0.029, and EX 0.075. The generalized wear model appears to be an excellent method for measuring relative wear of resin composite materials.

Original languageEnglish
Pages (from-to)226-233
Number of pages8
JournalOperative Dentistry
Volume38
Issue number2
DOIs
StatePublished - Mar 2013

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Composite Resins
Stainless Steel
Polymethyl Methacrylate
Analysis of Variance
Software
Esthet-X

All Science Journal Classification (ASJC) codes

  • Dentistry(all)

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Wear rates of resin composites. / Barkmeier, Wayne W.; Erickson, R. L.; Latta, Mark A.; Wilwerding, T. M.

In: Operative Dentistry, Vol. 38, No. 2, 03.2013, p. 226-233.

Research output: Contribution to journalArticle

Barkmeier, WW, Erickson, RL, Latta, MA & Wilwerding, TM 2013, 'Wear rates of resin composites', Operative Dentistry, vol. 38, no. 2, pp. 226-233. https://doi.org/10.2341/12-112-L
Barkmeier, Wayne W. ; Erickson, R. L. ; Latta, Mark A. ; Wilwerding, T. M. / Wear rates of resin composites. In: Operative Dentistry. 2013 ; Vol. 38, No. 2. pp. 226-233.
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