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Title
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Chemical characterization of the resin-dentin interface by micro-raman spectroscopy
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Author
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Abstract
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| The chemical nature of the interface between dentin and adhesive resin materials was characterized by micro-Raman spectroscopy. The resulting chemical profiles were correlated with photomicrographs obtained by SEM after an argon-ion-beam etching treatment of the sample surface. Two commercially available dentin adhesive systems, of which one was also applied with a different conditioning agent, were investigated. Raman spectra, which were recorded along line scans across the interface with a step increment of 1 mum, revealed that resin effectively penetrated 4 to 6 mum deep into the superficially decalcified dentin zone. Across the interface, a gradual transition from resin to dentin over the interdiffusion zone with a mixed contribution of both substances was noticed. Finally, resin appeared to penetrate to the entire decalcification depth of dentin regardless of the aggressiveness of the conditioning procedure. |
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Language
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English
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Source (journal)
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Journal of dental research. - St. Louis, Mo.
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Publication
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St. Louis, Mo.
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1993
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ISSN
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0022-0345
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DOI
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10.1177/00220345930720101201
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Volume/pages
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72
:10
(1993)
, p. 1423-1428
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ISI
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A1993MA59700012
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Full text (Publisher's DOI)
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