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


     

This Article
Right arrow Figures Only
Right arrow Full Text
Right arrow Full Text (PDF)
Services
Right arrow Similar articles in this journal
Right arrow Similar articles in ISI Web of Science
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 ISI Web of Science (3)
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by AL-Helal, A.S.
Right arrow Articles by Wefel, J.S.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by AL-Helal, A.S.
Right arrow Articles by Wefel, J.S.
J Dent Res 82(2): 146-150, 2003
© 2003 International and American Associations for Dental Research

RESEARCH REPORT
Biomaterials & Bioengineering

Effect of Smear Layer on Root Demineralization Adjacent to Resin-modified Glass Ionomer

A.S. AL-Helal1, S.R. Armstrong1, X.J. Xie2, and J.S. Wefel1,*

1 Dows Institute for Dental Research, College of Dentistry N413, and
2 Department of Biostatistics, College of Public Health, The University of Iowa, Iowa City, IA 52242-1010;

*corresponding author, james-wefel{at}uiowa.edu

The cariostatic effect of resin-modified glass ionomer (RMGI) on secondary root caries is well-documented. However, this beneficial effect may be dependent upon the mode of cavity surface treatment. To investigate this relationship, we studied 4 cavity surface treatments prior to the placement of RMGI: no treatment (None), polyacrylic acid (PAA), phosphoric acid (H3PO4), and Scotchbond Multi-Purpose adhesive (SMP) as a control. Specimens were aged for two weeks in synthetic saliva, thermocycled, and subjected to an artificial caries challenge (pH 4.4). Polarized light microscopy (PLM) and microradiography (MRG) showed significantly less demineralization with the H3PO4 cavity surface treatment as revealed by ANOVA and Tukey’s multiple comparisons (p <= 0.05). Dentin fluoride profiles determined by electron probe microanalysis (EPMA) supported PLM and MRG findings. It may be concluded that removal of the smear layer with phosphoric acid provides significantly enhanced resistance to secondary root caries formation adjacent to RMGI restorations.

KEY WORDS: smear layer • demineralization • root • fluoride • glass ionomer






HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
IADR Journals Advances in Dental Research ®
Journal of Dental Research ® Critical Reviews (1990-2004)
Copyright © 2003 Institutional Access Guidelines