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Title: Viscoelastic and fatigue properties of model methacrylate-based dentin adhesives
Authors: Ye, Qiang 
Kieweg, Sarah L. 
Park, Jonggu 
Marangos, Orestes 
Misra, Anil S.
Spencer, Paulette 
Singh, Viraj 
Major Field of Science: Engineering and Technology
Field Category: Civil Engineering
Keywords: Creep;Dentin adhesive;Dry and wet;Fatigue;Prony series;S-N curves;Viscoelastic
Issue Date: 1-Nov-2010
Source: Journal of Biomedical Materials Research - Part B Applied Biomaterials, 2010, vol. 95 B, no. 2, pp. 283-290
Volume: 95 B
Issue: 2
Start page: 283
End page: 290
Journal: Journal of Biomedical Materials Research Part B: Applied Biomaterials 
Abstract: The objective of the current study is to characterize the viscoelastic and fatigue properties of model methacrylate-based dentin adhesives under dry and wet conditions. Static, creep, and fatigue tests were performed on cylindrical samples in a 3-point bending clamp. Static results showed that the apparent elastic modulus of the model adhesive varied from 2.56 to 3.53 GPa in the dry condition, and from 1.04 to 1.62 GPa in the wet condition, depending upon the rate of loading. Significant differences were also found for the creep behavior of the model adhesive under dry and wet conditions. A linear viscoelastic model was developed by fitting the adhesive creep behavior. The developed model with 5 Kelvin Voigt elements predicted the apparent elastic moduli measured in the static tests. The model was then utilized to interpret the fatigue test results. It was found that the failure under cyclic loading can be due to creep or fatigue, which has implications for the failure criterion that are applied for these types of tests. Finally, it was found that the adhesive samples tested under dry conditions were more durable than those tested under wet conditions. © 2010 Wiley Periodicals, Inc.
ISSN: 15524981
DOI: 10.1002/jbm.b.31712
Rights: © Wiley
Type: Article
Affiliation : University of Kansas 
Cyprus University of Technology 
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