Chemical exchange between glass-ionomer restorations and residual carious dentine in permanent molars: An in vivo study

Ngo, Hien C., Mount, Graham, Mc Intyre, John, Tuisuva, J. and Von Doussa, R. J. (2006). Chemical exchange between glass-ionomer restorations and residual carious dentine in permanent molars: An in vivo study. In: Gavin Pearson and Richard Billington, Proceedings of the 2nd European Glass Ionomer Conference. 2nd European Conference on Glass Ionomer Cements (GIC), Coventry, United Kingdom, (608-613). May 2004. doi:10.1016/j.jdent.2005.12.012


Author Ngo, Hien C.
Mount, Graham
Mc Intyre, John
Tuisuva, J.
Von Doussa, R. J.
Title of paper Chemical exchange between glass-ionomer restorations and residual carious dentine in permanent molars: An in vivo study
Conference name 2nd European Conference on Glass Ionomer Cements (GIC)
Conference location Coventry, United Kingdom
Conference dates May 2004
Proceedings title Proceedings of the 2nd European Glass Ionomer Conference   Check publisher's open access policy
Journal name Journal of Dentistry   Check publisher's open access policy
Place of Publication Oxford, United Kingdom
Publisher Elsevier
Publication Year 2006
Sub-type Fully published paper
DOI 10.1016/j.jdent.2005.12.012
ISSN 0300-5712
1879-176X
Editor Gavin Pearson
Richard Billington
Volume 34
Issue 8
Start page 608
End page 613
Total pages 5
Language eng
Formatted Abstract/Summary
Objective: To evaluate the remineralization of carious dentine following the restoration of an extensive lesion in a permanent molar with a high strength glass-ionomer cement (GIC).
Materials and methods: Thirteen first permanent molars, which were scheduled for extraction because of the presence of extensive caries lesions, were selected for this study. They were first restored, according to the ART technique, using encapsulated Fuji IXGP, which contains a strontium glass rather than the traditional calcium glass. The cavities were prepared with a clean enamel margin and minimal removal of the carious dentine around the walls. After a period of 1–3 months they were harvested and subsequently sectioned and examined using an electron probe microanalysis (EPMA) and scanning electron microscopy (SEM).
Results: EPMA demonstrated that both fluorine and strontium ions had penetrated deep into the underlying demineralized dentine. The only possible source of these ions was the GIC restoration.
Conclusion: The pattern of penetration of the fluorine and strontium ions into the dentine was consistent with a remineralization process.
Keyword Glass-ionomer
Dentine remineralization
Clinical trial
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ
Additional Notes This special edition of the Journal of Dentistry is the outcome of the Second European Conference on Glass Ionomer Cements {GIC} which was held in May 2004 at Warwick University.

Document type: Conference Paper
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Created: Wed, 17 Nov 2010, 14:17:48 EST