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PubMed · 2135537

[Electron-probe microanalysis examination of acid-proof dentin layer].

T Fukushima·Y Inoue·M Kawaguchi·T Horibe
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Abstract

To predict the presence and thickness of the acid-proof dentin layer by the method of combining the halogenated methacrylate and electron-probe microanalyzer (EPMA), 2-methacryloyloxyethyl hydrogen chloromaleate (CIMEM) used as a base monomer for a bonding agent and 2-bromoethyl methacrylate (2 BEM), 2-(4-bromophenyl)ethyl methacrylate (BPy1EM), 2-(4-bromo-1-naphthyl)ethyl methacrylate (BNEM) and 2,4,6-tribromophenoxy methacrylate (TriBr-PM) used as tracers were synthesized. The bond strength to dentin treated with 37% phosphoric acid solution for 30 sec. was not statistically different for the bonding agents with and without tracers. The SEM micrographs revealed that the layers, which may be acid-proof dentin layers, were 3-4 microns thick at the resin-dentin interface for all bonding agents. According to EPMA analysis, cps of C1Ka and BrLa increase at the same points and the acid-proof dentin layer thickness was about 4 microns.

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Acid Etching, DentalDental BondingDentinElectron Probe MicroanalysisMaleatesMethacrylatesEnglish AbstractJournal Article

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T Fukushima, Y Inoue, M Kawaguchi, T Horibe. 1990. [Electron-probe microanalysis examination of acid-proof dentin layer].. https://pubmed.ncbi.nlm.nih.gov/2135537/

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