Volume 14, Issue 11 pp. 1569-1579
Full Paper

Telechelic Poly(2-oxazoline)s with a Biocidal and a Polymerizable Terminal as Collagenase Inhibiting Additive for Long-Term Active Antimicrobial Dental Materials

Christoph P. Fik

Christoph P. Fik

Chair of Biomaterials and Polymer Science, Department of Biochemical and Chemical Engineering, TU Dortmund, Emil-Figge-Str. 66, 44227 Dortmund, Germany

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Stefan Konieczny

Stefan Konieczny

Chair of Biomaterials and Polymer Science, Department of Biochemical and Chemical Engineering, TU Dortmund, Emil-Figge-Str. 66, 44227 Dortmund, Germany

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David H. Pashley

David H. Pashley

Department of Oral Biology, College of Dental Medicine, Georgia Health Sciences University, Augusta, GA 30912, USA

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Christian J. Waschinski

Christian J. Waschinski

Freiburg Materials Research Center, University of Freiburg, Stefan-Meier-Str., 79104 Freiburg, Germany

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Reinhild S. Ladisch

Reinhild S. Ladisch

Chair of Biomaterials and Polymer Science, Department of Biochemical and Chemical Engineering, TU Dortmund, Emil-Figge-Str. 66, 44227 Dortmund, Germany

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Ulrich Salz

Ulrich Salz

Ivoclar Vivadent AG, Bendererstr. 2, 9494 Schaan, Liechtenstein

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Thorsten Bock

Thorsten Bock

Ivoclar Vivadent AG, Bendererstr. 2, 9494 Schaan, Liechtenstein

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Joerg C. Tiller

Corresponding Author

Joerg C. Tiller

Chair of Biomaterials and Polymer Science, Department of Biochemical and Chemical Engineering, TU Dortmund, Emil-Figge-Str. 66, 44227 Dortmund, Germany

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First published: 08 August 2014
Citations: 42

Abstract

Dental repair materials face the problem that the dentin below the composite fillings is actively decomposed by secondary caries and extracellular proteases. To address this problem, poly(2-methyloxazoline) with a biocidal and a polymerizable terminal was explored as additive for a commercial dental adhesive. 2.5 wt% of the additive rendered the adhesive contact-active against Streptococcus mutans and washing with water for 101 d did not diminish this effect. The adhesive with 5 wt% additive kills S. mutans cells in the tubuli of bovine dentin. Further, the additive inhibits bacterial collagenase at 0.5 wt% and reduces activity of MMP-9. Human MMPs bound to dentin are inhibited by 96% in a medium with 5 wt% additive. Moreover, no adverse effect on the enamel/dentine shear bond strength was detected.mabi201400220-gra-0001

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