JDR JDR Most Cited Articles
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

This Article
Right arrow Full Text (PDF)
Services
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Nishiyama, N.
Right arrow Articles by Nemoto, K.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Nishiyama, N.
Right arrow Articles by Nemoto, K.

Journal of Dental Research, Vol 79, 806-811, Copyright © 2000 by International & American Associations for Dental Research Online Journals

ARTICLES

Bond strength of resin to acid-etched dentin studied by 13C NMR: interaction between N-methacryloyl-omega-amino acid primer and dentinal collagen

N. Nishiyama, T. Asakura, K. Suzuki, K. Komatsu and K. Nemoto
Department of Dental Materials, Nihon University School of Dentistry at Matsudo, Chiba, Japan. norihiro@mascat.nihon-u.ac.jp

The application of the hydrophilic methacrylate primer to acid-etched dentin increases the bond strength of the resin to the acid-etched dentin. However, the mechanism for the bonding of the resin to dentinal collagen through the primer remains to be determined. Before a more effective adhesive primer can be developed, we must understand the adsorption behavior of the primer to the dentinal collagen. The purpose of this study was to determine how 5 derivatives of N-methacryloyl-omega-amino acid (NMomegaA) primers enhance the bonding of the resin to acid-etched dentin. The interaction between the NMomegaA primers and dentinal collagen was studied by the 13C NMR technique, including the observation of spin-lattice relaxation times, T1. When the dentinal collagen was dispersed into the NMomegaA solution, the T1 values of the two carbonyl carbons attributed to the amide and the carboxylic acid in the NMomegaA molecule decreased dramatically. This result was due to the interaction between the amide group and the carboxylic acid group in the NMomegaA molecule and the dentinal collagen molecule. The T1 values of these carbonyl carbons decreased when the number of methylene groups in the NMomegaA molecule increased. The interaction became stronger as the number of methylene groups in the NMomegaA molecule was increased. Further, the bond strength of the resin to the acid-etched dentin primed with NMomegaA increased with a decrease in the T1 value of the amide carbonyl carbon. The strength of the interaction of the NMomegaA primer to the dentinal collagen molecule, determined by the 13C NMR technique, showed a direct correlation with the bond strength of the resin to acid-etched dentin that was treated with the NMomegaA primer.


This article has been cited by other articles:


Home page
 J. Dent. Res.Home page
N. Nishiyama, K. Suzuki, K. Komatsu, S. Yasuda, and K. Nemoto
A 13C NMR Study on the Adsorption Characteristics of HEMA to Dentinal Collagen
J. Dent. Res., July 1, 2002; 81(7): 469 - 471.
[Abstract] [Full Text] [PDF]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
IADR Journals Advances in Dental Research ®
Journal of Dental Research ® Critical Reviews (1990-2004)
Copyright © 2000 Institutional Access Guidelines