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Effect of Photo-Initiators on the In Vitro Performance of a Dentin Adhesive Exposed to Simulated Oral Environment
Ye, Qiang Park, Jonggu Topp, Elizabeth M. Spencer, Paulette
Ye, Qiang
Park, Jonggu
Topp, Elizabeth M.
Spencer, Paulette
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Abstract
Our previous study showed poor mechanical durability and nano-sized heterogeneities in cross-linked dentin adhesives cured in the presence of water. To further explore the relationship between nano-scale heterogeneities and the long-term mechanical properties of dentin adhesives, the properties of model dentin adhesives polymerized using hydrophilic photoinitiators were compared with those of adhesives polymerized using hydrophobic camphorquinone-based photoinitiators. There was a continuous decline of mechanical properties for the specimens cured in the presence of water during 3 months aqueous storage, especially for the specimens that contained hydrophobic photoinitiators. The multi-component systems containing hydrophilic photoinitiators were shown to produce superior model dental adhesives when these materials are cured in the presence of water.
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Date
2010-04-01
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Elsevier
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spencer_effect.pdf
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Keywords
Hydrophilic/hydrophobic photoinitiator, Dentin adhesive, Durability, Mechanical property, Nanoheterogeneity
Citation
Ye, Qiang, Jonggu Park, Elizabeth Topp, and Paulette Spencer. "Effect of Photo-Initiators on the In Vitro Performance of a Dentin Adhesive Exposed to Simulated Oral Environment." Dental Materials (2009): 452-58.