Journal Article

Use of glass-ionomers for bracket bonding - an <i>ex vivo</i> study evaluating a testing device for <i>in vivo</i> purposes

TW Örtendahl and B Thilander

in The European Journal of Orthodontics

Published on behalf of European Orthodontics Society

Volume 20, issue 2, pages 201-208
Published in print April 1998 | ISSN: 0141-5387
Published online April 1998 | e-ISSN: 1460-2210 | DOI:
Use of glass-ionomers for bracket bonding - an ex vivo study evaluating a testing device for in vivo purposes

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  • Restorative Dentistry and Orthodontics


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Seven glass-ionomer cements were tested and compared with a composite resin in order to find the glass-ionomer cement with the highest bond strength to enamel with normal anatomy and composition (not ground). Five types of surface treatment were used. The results show that Aqua Cem® and Ketac Cem®, both water-hardening, present the highest bond strength, followed by the conventional glass-ionomer cement Fuji IIF®. Surface treatment according to the manufacturers' instructions and surface treatment with polyacrylic acid were found to give rise to the highest bond strength for all of the seven cements. However, none of the glass-ionomer cements reached the values for the composite resin Concise®. The testing instrument designed for ex vivo purposes measured with high precision and accuracy and with a low methodological error.

Journal Article.  0 words. 

Subjects: Restorative Dentistry and Orthodontics

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