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Comparative study on adhesive performance of functional monomers.

Authors :
Yoshida Y
Nagakane K
Fukuda R
Nakayama Y
Okazaki M
Shintani H
Inoue S
Tagawa Y
Suzuki K
De Munck J
Van Meerbeek B
Source :
Journal of dental research [J Dent Res] 2004 Jun; Vol. 83 (6), pp. 454-8.
Publication Year :
2004

Abstract

Mild self-etch adhesives demineralize dentin only partially, leaving hydroxyapatite around collagen within a submicron hybrid layer. We hypothesized that this residual hydroxyapatite may serve as a receptor for chemical interaction with the functional monomer and, subsequently, contribute to adhesive performance in addition to micro-mechanical hybridization. We therefore chemically characterized the adhesive interaction of 3 functional monomers with synthetic hydroxyapatite, using x-ray photoelectron spectroscopy and atomic absorption spectrophotometry. We further characterized their interaction with dentin ultra-morphologically, using transmission electron microscopy. The monomer 10-methacryloxydecyl dihydrogen phosphate (10-MDP) readily adhered to hydroxyapatite. This bond appeared very stable, as confirmed by the low dissolution rate of its calcium salt in water. The bonding potential of 4-methacryloxyethyl trimellitic acid (4-MET) was substantially lower. The monomer 2-methacryloxyethyl phenyl hydrogen phosphate (phenyl-P) and its bond to hydroxyapatite did not appear to be hydrolytically stable. Besides self-etching dentin, specific functional monomers have additional chemical bonding efficacy that is expected to contribute to their adhesive potential to tooth tissue.

Details

Language :
English
ISSN :
0022-0345
Volume :
83
Issue :
6
Database :
MEDLINE
Journal :
Journal of dental research
Publication Type :
Academic Journal
Accession number :
15153451
Full Text :
https://doi.org/10.1177/154405910408300604