Antibacterial coating of orthodontic elastomeric ligatures with silver and bismuth nanofilms by magnetron sputtering: A feasibility study

Abstract Objectives Magnetron sputtering was evaluated to equip surfaces of orthodontic elastomeric ligatures with silver and bismuth nanofilms. Material and Methods Antibacterial properties were evaluated by the adhesion of Streptococcus mutans. Polyurethane‐based elastomeric ligatures were coated...

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Main Authors: Andrea Schubert, Carolin Griesmüller, Nikolaus Gersdorff, Ralf Bürgers, Bernhard Wiechens, Torsten Wassmann
Format: Article
Language:English
Published: Wiley 2024-04-01
Series:Clinical and Experimental Dental Research
Subjects:
Online Access:https://doi.org/10.1002/cre2.864
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author Andrea Schubert
Carolin Griesmüller
Nikolaus Gersdorff
Ralf Bürgers
Bernhard Wiechens
Torsten Wassmann
author_facet Andrea Schubert
Carolin Griesmüller
Nikolaus Gersdorff
Ralf Bürgers
Bernhard Wiechens
Torsten Wassmann
author_sort Andrea Schubert
collection DOAJ
description Abstract Objectives Magnetron sputtering was evaluated to equip surfaces of orthodontic elastomeric ligatures with silver and bismuth nanofilms. Material and Methods Antibacterial properties were evaluated by the adhesion of Streptococcus mutans. Polyurethane‐based elastomeric ligatures were coated with silver and bismuth nanofilms via direct current magnetron sputtering. Surface roughness (Ra) and surface‐free energy (SFE) were assessed. Coated specimens were incubated with S. mutans for 2 h. Adhering bacteria were visualized by Hoechst staining and quantified by an ATP‐based luminescence assay. One‐way analysis of variance with Tukey post hoc testing and Pearson correlation analysis were performed (p < .05) to relate bacterial adhesion to surface roughness and surface‐free energy. Results Elastomeric ligatures were successfully coated with silver and bismuth nanofilms. Ra was significantly reduced by silver coating. Silver and bismuth coatings showed significantly higher SFE than controls. Adhesion of S. mutans was significantly decreased by silver coating. No correlation between bacterial adhesion and SFE was found. Correlation between bacterial adhesion and Ra was positive but not statistically significant. Conclusions Magnetron sputtering proved to be a feasible method to equip orthodontic elastomeric ligatures with silver and bismuth nanofilms. Silver coatings of elastomeric ligatures may reduce white spots and carious lesions in orthodontic patients. Future research is required to stabilize coatings.
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spelling doaj.art-d476f56dc0ff4315854d0f385bfe37ac2024-04-16T09:42:17ZengWileyClinical and Experimental Dental Research2057-43472024-04-01102n/an/a10.1002/cre2.864Antibacterial coating of orthodontic elastomeric ligatures with silver and bismuth nanofilms by magnetron sputtering: A feasibility studyAndrea Schubert0Carolin Griesmüller1Nikolaus Gersdorff2Ralf Bürgers3Bernhard Wiechens4Torsten Wassmann5Department of Prosthodontics University Medical Center Goettingen Goettingen GermanyDepartment of Prosthodontics University Medical Center Goettingen Goettingen GermanyDepartment of Prosthodontics University Medical Center Goettingen Goettingen GermanyDepartment of Prosthodontics University Medical Center Goettingen Goettingen GermanyDepartment of Orthodontics University Medical Center Goettingen Goettingen GermanyDepartment of Prosthodontics University Medical Center Goettingen Goettingen GermanyAbstract Objectives Magnetron sputtering was evaluated to equip surfaces of orthodontic elastomeric ligatures with silver and bismuth nanofilms. Material and Methods Antibacterial properties were evaluated by the adhesion of Streptococcus mutans. Polyurethane‐based elastomeric ligatures were coated with silver and bismuth nanofilms via direct current magnetron sputtering. Surface roughness (Ra) and surface‐free energy (SFE) were assessed. Coated specimens were incubated with S. mutans for 2 h. Adhering bacteria were visualized by Hoechst staining and quantified by an ATP‐based luminescence assay. One‐way analysis of variance with Tukey post hoc testing and Pearson correlation analysis were performed (p < .05) to relate bacterial adhesion to surface roughness and surface‐free energy. Results Elastomeric ligatures were successfully coated with silver and bismuth nanofilms. Ra was significantly reduced by silver coating. Silver and bismuth coatings showed significantly higher SFE than controls. Adhesion of S. mutans was significantly decreased by silver coating. No correlation between bacterial adhesion and SFE was found. Correlation between bacterial adhesion and Ra was positive but not statistically significant. Conclusions Magnetron sputtering proved to be a feasible method to equip orthodontic elastomeric ligatures with silver and bismuth nanofilms. Silver coatings of elastomeric ligatures may reduce white spots and carious lesions in orthodontic patients. Future research is required to stabilize coatings.https://doi.org/10.1002/cre2.864elastomeric ligaturesmagnetron sputteringmicrobial adhesionnanoparticles
spellingShingle Andrea Schubert
Carolin Griesmüller
Nikolaus Gersdorff
Ralf Bürgers
Bernhard Wiechens
Torsten Wassmann
Antibacterial coating of orthodontic elastomeric ligatures with silver and bismuth nanofilms by magnetron sputtering: A feasibility study
Clinical and Experimental Dental Research
elastomeric ligatures
magnetron sputtering
microbial adhesion
nanoparticles
title Antibacterial coating of orthodontic elastomeric ligatures with silver and bismuth nanofilms by magnetron sputtering: A feasibility study
title_full Antibacterial coating of orthodontic elastomeric ligatures with silver and bismuth nanofilms by magnetron sputtering: A feasibility study
title_fullStr Antibacterial coating of orthodontic elastomeric ligatures with silver and bismuth nanofilms by magnetron sputtering: A feasibility study
title_full_unstemmed Antibacterial coating of orthodontic elastomeric ligatures with silver and bismuth nanofilms by magnetron sputtering: A feasibility study
title_short Antibacterial coating of orthodontic elastomeric ligatures with silver and bismuth nanofilms by magnetron sputtering: A feasibility study
title_sort antibacterial coating of orthodontic elastomeric ligatures with silver and bismuth nanofilms by magnetron sputtering a feasibility study
topic elastomeric ligatures
magnetron sputtering
microbial adhesion
nanoparticles
url https://doi.org/10.1002/cre2.864
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