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Physicochemical interactions at the dentin/adhesive interface using FTIR chemical imaging
Spencer, Paulette Wang, Yong Katz, J. Lawrence Misra, Anil
Spencer, Paulette
Wang, Yong
Katz, J. Lawrence
Misra, Anil
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Abstract
To date, much of our understanding of dentin bonding has been based on investigations performed on sound, healthy dentin. This is not the substrate generally encountered in clinical practice, rather dentists must frequently bond to caries-affected dentin. Because of the extreme complexity and variability of the caries-affected dentin substrate, conventional characterization techniques do not provide adequate information for defining those factors that impact bond formation. Using Fourier-transform infrared imaging, we characterized the inhomogeneities and compositional differences across the length and breadth of the caries-affected dentin/adhesive interface. Differences in mineral/matrix ratio, crystallinity, and collagen organization were noted in the comparison of caries-affected and healthy dentin. As compared to healthy dentin, there were striking differences in depth of demineralization, adhesive infiltration, and degree of conversion at the interface with caries-affected dentin.
Description
This is the published version.
Date
2005-05-24
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Publisher
Society of Photo-optical Instrumentation Engineers
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Keywords
Infrared, Dentin, Adhesive, Caries, Interface, Tooth
Citation
Spencer, Paulette, Yong Wang, J. Lawrence Katz, and Anil Misra. "Physicochemical Interactions at the Dentin/adhesive Interface Using FTIR Chemical Imaging." J. Biomed. Opt. Journal of Biomedical Optics 10.3 (2005): 031104. http://dx.doi.org/10.1117/1.1914844.