RESEARCH ARTICLE


Resin Infiltration into Differentially Extended Experimental Carious Lesions



Wolfgang H Arnold *, 1, Lena Bachstaedter 1, Korbinian Benz 2, Ella A Naumova 1
1 Department of Biological and Material Sciences in Dentistry, School of Dentistry, Faculty of Health, Witten/Herdecke University, Alfred Herrhausenstrasse 44, 58455 Witten, Germany
2 Department of Oral Surgery, School of Dentistry, Faculty of Health, Witten/Herdecke University, Germany


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Creative Commons License
© Arnold et al.; Licensee Bentham Open.

open-access license: This is an open access article licensed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted, non-commercial use, distribution and reproduction in any medium, provided the work is properly cited.

* Address correspondence to this author at the Department of Biological and Material Sciences in Dentistry, School of Dentistry, Faculty of Health, Witten/Herdecke University, Alfred Herrhausenstrasse 44, 58455 Witten, Germany; Tel: +492302926658; Fax: +492302926661; E-mail: wolfgang.arnold@uni-wh.de


Abstract

Resin infiltration of initial caries lesions is a novel method of caries therapy. However, it has some limitations. Therefore, further experimental studies are needed to improve resin infiltration. It was the aim of this investigation to study resin infiltra-tion into different experimental carious lesions. Caries-free extracted human molars and premolars were demineralized for 3, 6, 9 and 12 days and infiltrated with resin. Prior to infiltration, the teeth were incubated with sodium fluorescein. After em-bedding, serial sections were cut through the experimental lesions, and the penetration of the resin was measured with fluo-rescence microscopy. Two infiltrated teeth from each time interval were not embedded and cut. Infiltration of the resin was then studied with EDS element analysis. The results showed that with increasing demineralization time, the lesion expansion was also increasing, and the resin infiltration was always almost complete. From these results it can be concluded that artifi-cial standardized caries-like lesions are suitable for experimental studies of resin infiltration.