NMR study on the adhesion efficacy of experimental phosphonic acid monomers

Norihiro Nishiyama, Masahiro Aida, Kou Fujita, Kazuomi Suzukp, F. R. Tay, David H. Pashley, Kimiya Nemoto

研究成果: ジャーナルへの寄稿記事査読

18 被引用数 (Scopus)

抄録

Three experimental self-etching primers -consisting of N-methacryloyl-to- aminoalkyl phosphonic acid (NMwP) with different methylene chain lengths and N-methacryloyl glycine (NMGIy) -were formulated. The influence of methylene chain length in NMwP derivatives on the chemical nature of calcium salts was examined following their application to tooth components. Bond strengths of experimental self-etching primers created with these monomers to enamel and dentin were also investigated. Nuclear magnetic resonance spectroscopy showed that NMwPs decalcified tooth components with formation of calcium salts, which changed from calcium hydrogen phosphonate to calcium phosphonate with increase in methylene chain length within the NMwP structure. Disparity in calcium salt formation was related to increases in bond strength to enamel from 18 to 24 MPa. However, bond strength to dentin remained unchanged (22 MPa). The relative dependency of bond strength on monomer methylene chain length was probably attributable to the sites where these NMwP calcium salts had deposited on the bonding substrates.

本文言語英語
ページ(範囲)382-387
ページ数6
ジャーナルDental Materials Journal
26
3
DOI
出版ステータス出版済み - 5月 2007

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