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Effects of a structural change in collagen upon binding to conditioned dentin studied by13C NMR

✍ Scribed by Nishiyama, Norihiro ;Asakura, Tetsuo ;Suzuki, Kazuomi ;Horie, Kozo ;Nemoto, Kimiya

Publisher
John Wiley and Sons
Year
1995
Tongue
English
Weight
459 KB
Volume
29
Category
Article
ISSN
0021-9304

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✦ Synopsis

To develop a better adhesive functional monomer, it is imperative to understand the adhesion mechanisms of the resin to the dentin surface. Bond strength to the decalcified dentin surface pretreated with dentin primer, an aqueous ethanol solution of N-methacryloyl glycine, increases by increasing the water content in the primer. The aqueous primer could increase the thickness of the hybrid layer. The structural change of dentinal collagen with NMaA was studied by using a model compound for collagen,-( 'Pro-2Pro-3Gly),o-, by I3C nuclear magnetic resonance (NMR). The model compound was aggregated in ethanol but dissociated in water. It was found that NMaA effectively dissociated the aggregated model compound in water. The dissociation of decalcified dentin was essential to create a thick hybrid layer that could afford a higher bond strength to dentin.

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