In vitro evaluation of chemical decontamination of titanium discs

Abstract Peri-implant diseases are caused by bacterial biofilm colonizing implant surfaces. Prevention and management of peri-implant mucositis and peri-implantitis rely on effective biofilm removal. This study aimed to evaluate biofilm removal and cytocompatibility following chemo-mechanical surfac...

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Autores principales: Yuki Ichioka, Jan Derks, Gunnar Dahlén, Tord Berglundh, Lena Larsson
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Lenguaje:EN
Publicado: Nature Portfolio 2021
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Acceso en línea:https://doaj.org/article/8ffc756b5a2846818fc3067139a1328b
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spelling oai:doaj.org-article:8ffc756b5a2846818fc3067139a1328b2021-11-28T12:19:38ZIn vitro evaluation of chemical decontamination of titanium discs10.1038/s41598-021-02220-32045-2322https://doaj.org/article/8ffc756b5a2846818fc3067139a1328b2021-11-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-02220-3https://doaj.org/toc/2045-2322Abstract Peri-implant diseases are caused by bacterial biofilm colonizing implant surfaces. Prevention and management of peri-implant mucositis and peri-implantitis rely on effective biofilm removal. This study aimed to evaluate biofilm removal and cytocompatibility following chemo-mechanical surface decontamination of biofilm-coated titanium discs. Biofilm-coated (Streptococcus gordonii) discs, with either non-modified (smooth) or modified (rough) surfaces, were instrumented using a sterile gauze soaked in one out of four solutions: saline (NaCl), alkaline electrized water (AEW), citric acid (CA) or N-acetyl-l-cysteine (NAC). Non-contaminated, untreated titanium discs served as controls (C). Residual deposits (bacteria and gauze fibers) and cytocompatibility for osteoblast-like cells were evaluated using SEM and immunofluorescence. Cytotoxicity was assessed using WST-8 assay and immunofluorescence. All protocols were equally effective in removing bacteria from smooth surfaces, while AEW and CA were found to be superior at rough surfaces. AEW and NAC were superior in promoting cytocompatibility over NaCl. NAC and CA had a strong cytotoxic effect on osteoblast-like and fibroblast cells. In conclusion, AEW may be beneficial in the decontamination of implant surfaces, effectively removing bacterial biofilm and restoring cytocompatibility.Yuki IchiokaJan DerksGunnar DahlénTord BerglundhLena LarssonNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-10 (2021)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Yuki Ichioka
Jan Derks
Gunnar Dahlén
Tord Berglundh
Lena Larsson
In vitro evaluation of chemical decontamination of titanium discs
description Abstract Peri-implant diseases are caused by bacterial biofilm colonizing implant surfaces. Prevention and management of peri-implant mucositis and peri-implantitis rely on effective biofilm removal. This study aimed to evaluate biofilm removal and cytocompatibility following chemo-mechanical surface decontamination of biofilm-coated titanium discs. Biofilm-coated (Streptococcus gordonii) discs, with either non-modified (smooth) or modified (rough) surfaces, were instrumented using a sterile gauze soaked in one out of four solutions: saline (NaCl), alkaline electrized water (AEW), citric acid (CA) or N-acetyl-l-cysteine (NAC). Non-contaminated, untreated titanium discs served as controls (C). Residual deposits (bacteria and gauze fibers) and cytocompatibility for osteoblast-like cells were evaluated using SEM and immunofluorescence. Cytotoxicity was assessed using WST-8 assay and immunofluorescence. All protocols were equally effective in removing bacteria from smooth surfaces, while AEW and CA were found to be superior at rough surfaces. AEW and NAC were superior in promoting cytocompatibility over NaCl. NAC and CA had a strong cytotoxic effect on osteoblast-like and fibroblast cells. In conclusion, AEW may be beneficial in the decontamination of implant surfaces, effectively removing bacterial biofilm and restoring cytocompatibility.
format article
author Yuki Ichioka
Jan Derks
Gunnar Dahlén
Tord Berglundh
Lena Larsson
author_facet Yuki Ichioka
Jan Derks
Gunnar Dahlén
Tord Berglundh
Lena Larsson
author_sort Yuki Ichioka
title In vitro evaluation of chemical decontamination of titanium discs
title_short In vitro evaluation of chemical decontamination of titanium discs
title_full In vitro evaluation of chemical decontamination of titanium discs
title_fullStr In vitro evaluation of chemical decontamination of titanium discs
title_full_unstemmed In vitro evaluation of chemical decontamination of titanium discs
title_sort in vitro evaluation of chemical decontamination of titanium discs
publisher Nature Portfolio
publishDate 2021
url https://doaj.org/article/8ffc756b5a2846818fc3067139a1328b
work_keys_str_mv AT yukiichioka invitroevaluationofchemicaldecontaminationoftitaniumdiscs
AT janderks invitroevaluationofchemicaldecontaminationoftitaniumdiscs
AT gunnardahlen invitroevaluationofchemicaldecontaminationoftitaniumdiscs
AT tordberglundh invitroevaluationofchemicaldecontaminationoftitaniumdiscs
AT lenalarsson invitroevaluationofchemicaldecontaminationoftitaniumdiscs
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