Structural, surface, in vitro bacterial adhesion and biofilm formation analysis of three dental restorative composites

Azam, M.T. and Khan, A.S. and Muzzafar, D. and Faryal, R. and Siddiqi, S.A. and Ahmad, R. and Chauhdry, A.A. and Rehman, I.U. (2015) Structural, surface, in vitro bacterial adhesion and biofilm formation analysis of three dental restorative composites. Materials, 8 (6). pp. 3221-3237. ISSN 1996-1944

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Abstract

This study was conducted to investigate the relationship between dental materials and bacterial adhesion on the grounds of their chemical composition and physical properties. Three commercially available dental restorative materials (Filtek™Z350, Filtek™P90 and Spectrum®TPH®) were structurally analyzed and their wettability and surface roughness were evaluated by using Fourier Transform Infrared Spectroscopy, Contact Angle Measurement and Atomic Force Microscopy, respectively. These materials were molded into discs and tested with three bacterial strains (Staphylococcus aureus, Pseudomonas aeruginosa and Escherichia) for microbial attachment. The bacterial adhesion was observed at different time intervals, i.e., 0 h, 8 h, 24 h, 48 h and 72 h, along with Colony Forming Unit Count and Optical Density measurement of the media. It was found that all materials showed a degree of conversion with time intervals, i.e., 0 h, 8 h, 24 h, 48 h and 72 h, which led to the availability of functional groups (N-H and C-H) that might promote adhesion. The trend in difference in the extent of bacterial adhesion can be related to particle size, chemical composition and surface wettability of the dental materials. © 2015 by the authors.

Item Type: Journal Article
Journal or Publication Title: Materials
Uncontrolled Keywords: /dk/atira/pure/subjectarea/asjc/2500
Subjects:
Departments: Faculty of Science and Technology > Engineering
ID Code: 132837
Deposited By: ep_importer_pure
Deposited On: 16 Apr 2019 08:50
Refereed?: Yes
Published?: Published
Last Modified: 11 Feb 2020 05:13
URI: https://eprints.lancs.ac.uk/id/eprint/132837

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