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Journal of Dental Research
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*Compound via MeSH
*Substance via MeSH
Hazardous Substances DB
*2-HYDROXYETHYL METHACRYLATE
*CARBON
*CARBON BLACK
*METHANE
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Biomaterials & Bioengineering

A 13C NMR Study on the Adsorption Characteristics of HEMA to Dentinal Collagen

N. Nishiyama1,*, K. Suzuki2, K. Komatsu1, S. Yasuda1 and K. Nemoto1

1 Department of Dental Materials, Nihon University School of Dentistry at Matsudo, 870-1 Sakaecho, Nishi 2, Matsudo, Chiba 271-8587, Japan; and
2 Department of Biomaterials, Okayama University Graduate School of Medicine and Dentistry, 2-5-1 Shikadacho, Okayama, Okayama 700-8525, Japan;

Correspondence: * corresponding author, norihiro{at}mascat.nihon-u.ac.jp

To develop a more effective primer, we must understand how 2-hydroxyethylmethacrylate, the HEMA primer, enhances bonding at the resin-dentin interface. In this study, to obtain an insight into the adhesion mechanisms of adhesive resin to etched dentin through HEMA, we examined the adsorption characteristics of HEMA to dentinal collagen by using the 13C NMR technique. The addition of dentinal collagen to the HEMA solution resulted in a decrease in T1 values of carbons attributed to the HEMA, thus reflecting an interaction between HEMA and collagen. Specifically, a reduction in the T1 value in the ester carbonyl carbon attributed to HEMA greater than that in the other carbons suggested the formation of a hydrogen bond between the ester carbonyl group in HEMA and the dentinal collagen.

Key Words: dentin adhesion mechanism • dentin primer • HEMA • dentinal collagen • collagen function • 13C NMR

Journal of Dental Research, Vol. 81, No. 7, 469-471 (2002)
DOI: 10.1177/154405910208100707
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M. Aida, M. Odaki, K. Fujita, T. Kitagawa, I. Teshima, K. Suzuki, and N. Nishiyama
Degradation-stage Effect of Self-etching Primer on Dentin Bond Durability
Journal of Dental Research, May 1, 2009; 88(5): 443 - 448.
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