Document Detail


The pKa effects of the carboxylic acid in N-methacryloyl-omega-amino acid on the demineralization and bond strengths to the teeth.
MedLine Citation:
PMID:  15130729     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
It is understood that the application of a self-etching primer to the tooth enhances the bonding of the resin to the tooth. In this study, we designed a self-etching primer consisting of a series of three N-methacryloyl-omega-amino acids (NMomegaA) with different methylene chain lengths. The demineralization aspect of the teeth components by the carboxylic acid in the NMomegaA and its effects on the bond strength of the resin to the tooth were examined. The amount of decalcification of the hydroxyapatite or dentin by the carboxylic acid in the NMomegaA was strongly dependent on the carboxylic acid's pKa value in the NMomegaA. However, the bond strength's mean values for both the enamel and dentin were not influenced by the degree of demineralization by the carboxylic acid in the NMomegaA. The greater mean value of the dentin's bond strength than with the enamel's was due to differences in the adhesion mechanism types, since the NMomegaA not only exhibited an etching efficacy but also a priming efficacy to the collagen that had been exposed by the NMomegaA conditioning.
Authors:
Norihiro Nishiyama; Kazuomi Suzuki; Kiyoyuki Takahashi; Kimiya Nemoto
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Publication Detail:
Type:  Evaluation Studies; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Biomaterials     Volume:  25     ISSN:  0142-9612     ISO Abbreviation:  Biomaterials     Publication Date:  2004 Oct 
Date Detail:
Created Date:  2004-05-07     Completed Date:  2005-01-25     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8100316     Medline TA:  Biomaterials     Country:  England    
Other Details:
Languages:  eng     Pagination:  5441-7     Citation Subset:  IM    
Copyright Information:
Copyright 2003 Elsevier Ltd.
Affiliation:
Department of Dental Materials, Nihon University School of Dentistry at Matsudo, Chiba, Japan. norihiro@mascat.nihon-u.ac.jp
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MeSH Terms
Descriptor/Qualifier:
Acid Etching, Dental / methods*
Adhesiveness
Amino Acids / chemistry*
Animals
Bone Demineralization Technique / methods*
Carboxylic Acids / chemistry*
Cattle
Cementation / methods*
Dental Enamel / chemistry*
Hardness
Hydrogen-Ion Concentration
Kinetics
Materials Testing
Resin Cements / chemistry*
Chemical
Reg. No./Substance:
0/Amino Acids; 0/Carboxylic Acids; 0/Clearfil Bonding Agent; 0/Resin Cements

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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