Publication: Changes in resin-infiltrated dentin stiffness after water storage
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Issued Date
2008
Resource Type
File Type
application/pdf
ISSN
220345
Other identifier(s)
2-s2.0-47649109084
Rights Holder(s)
Scopus
Bibliographic Citation
Journal of Dental Research. Vol 87, No.7 (2008), p.655-660
Suggested Citation
Chiaraputt S., Mai S., Huffman B.P., Kapur R., Agee K.A., Yiu C.K.Y., Chan D.C.N., Harnirattisai C., Arola D.D., Rueggeberg F.A., Pashley D.H., Tay F.R. Changes in resin-infiltrated dentin stiffness after water storage. Journal of Dental Research. Vol 87, No.7 (2008), p.655-660. doi:10.1177/154405910808700704 Retrieved from: https://hdl.handle.net/20.500.14740/3961
Abstract
Plasticization of polymers by water sorption lowers their mechanical properties in a manner that is predictable by the polarity of their component resins. This study tested the hypothesis that when adhesive resins were used to create resin-infiltrated dentin, the reductions in their flexural moduli after water storage would be lowered proportional to their hydrophilic characteristics. Three increasingly hydrophilic resin blends were used to fabricate polymer beams and macro-hybrid layer models of resin-infiltrated dentin for testing with a miniature three-point flexure device, before and after 1-4 weeks of water storage. Flexural modulus reductions in macro-hybrid layers were related to, and more extensive than, reductions in the corresponding polymer beams. Macro-hybrid layers that were more hydrophilic exhibited higher percent reductions in flexural modulus, with the rate of reduction proportional to the Hoy's solubility parameters for total intermolecular attraction forces (δt) and polar forces (δp) of the macrohybrid layers.
Subject(s)
Dentin bonding agent
Resin
Resin cement
Water
Analysis of variance
Article
Chemistry
Comparative study
Dental care
Dentin
Endodontics
Hardness
Human
Mechanical stress
Molar tooth
Nonparametric test
Pliability
Wettability
Analysis of Variance
Dental Stress Analysis
Dentin
Dentin-Bonding Agents
Hardness
Humans
Marginal Adaptation (Dentistry)
Molar, Third
Pliability
Resin Cements
Resins, Synthetic
Statistics, Nonparametric
Stress, Mechanical
Water
Wettability
Resin
Resin cement
Water
Analysis of variance
Article
Chemistry
Comparative study
Dental care
Dentin
Endodontics
Hardness
Human
Mechanical stress
Molar tooth
Nonparametric test
Pliability
Wettability
Analysis of Variance
Dental Stress Analysis
Dentin
Dentin-Bonding Agents
Hardness
Humans
Marginal Adaptation (Dentistry)
Molar, Third
Pliability
Resin Cements
Resins, Synthetic
Statistics, Nonparametric
Stress, Mechanical
Water
Wettability