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Antibacterial Properties of Dental Luting Agents: Potential to Hinder the Development of Secondary Caries
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Materials Sciences. (Material i medicin)
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Nanotechnology and Functional Materials.
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Materials Sciences.
Doxa AB.
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2012 (English)In: International Journal of Dentistry, ISSN 1687-8736, Vol. 2012, 529495- p.Article in journal (Refereed) Published
Abstract [en]

A modified direct contact test was used to evaluate the antibacterial properties of four commercially available dental luting agents (RelyX Unicem, Ketac Cem, Ceramir Crown & Bridge and Harvard Cement) and two reference materials (glass-ionomer cement and calcium aluminate cement) compared to a negative-control material (PMMA). Streptococcus mutans bacteria were placed in direct contact with specimens that had been aged for 10 min, 1 day, and 7 days, in order to test the antibacterial properties of the materials. A metabolic assay containing resazurin was used to quantify the amount of viable bacteria remaining after the direct contact tests. The effects of pH and fluoride on bacteria proliferation were also evaluated. Strongest antibacterial properties were found for calcium aluminate cement, followed by Ceramir Crown & Bridge and RelyX Unicem. Ketac Cem, Harvard Cement, and the reference glass-ionomer cement showed bacteria content either higher than or not significantly different from the PMMA control in all instances. pH levels below 6.3 and above 9.0 were found to have negative effects on bacterial proliferation. No correlation between either acidic materials or fluoride release and antibacterial properties could be seen; rather, basic materials showed stronger antibacterial properties.

Place, publisher, year, edition, pages
Hindawi Publishing Corporation, 2012. Vol. 2012, 529495- p.
National Category
Medical Materials
Research subject
Engineering Science with specialization in Materials Science; Engineering Science with specialization in Nanotechnology and Functional Materials
Identifiers
URN: urn:nbn:se:uu:diva-184974DOI: 10.1155/2012/529495OAI: oai:DiVA.org:uu-184974DiVA: diva2:570055
Available from: 2012-11-20 Created: 2012-11-15 Last updated: 2012-12-28Bibliographically approved

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Unosson, ErikCai, YanlingWelch, KenEngqvist, Håkan

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