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Open AccessArticle

Influence of In-Situ Electrochemical Oxidation on Implant Surface and Colonizing Microorganisms Evaluated by Scanning Electron Microscopy

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Division of Ultra-Hard Coatings, Department of Material Sciences, University of Erlangen-Nuremberg, 91058 Erlangen, Germany
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Microbiology Division, Department of Biology, University of Erlangen-Nuremberg, 91058 Erlangen, Germany
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Institute of Biomaterials, Department of Material Sciences, University of Erlangen-Nuremberg, 91058 Erlangen, Germany
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Department of Prosthodontics, Saarland University, 66424 Homburg/Saar, Germany
*
Author to whom correspondence should be addressed.
Materials 2019, 12(23), 3977; https://doi.org/10.3390/ma12233977
Received: 11 November 2019 / Revised: 22 November 2019 / Accepted: 28 November 2019 / Published: 30 November 2019
(This article belongs to the Special Issue Advanced Materials and Techniques for Dental Implant Treatment)
Peri-implantitis is a worldwide increasing health problem, caused by infection of tissue and bone around an implant by biofilm-forming microorganisms. Effects of peri-implantitis treatment using mechanical debridement, air particle abrasion and electrochemical disinfection on implant surface integrity were compared. Dental implants covered with bacterial biofilm were cleaned using mechanical debridement and air particle abrasion. In addition, implants were disinfected using a novel electrochemical technique based on an array of boron-doped diamond (BDD) coated electrodes. Following treatment and preparation, the implants were inspected by scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDX). Mechanical debridement led to changes in surface topography destroying the manufacturer’s medium-rough surface by scratch formation. Air particle abrasion led to accumulation of the abrasive used on the implant surface. With both treatment options, appearance of bacteria and yeasts was not affected. In contrast, electrochemical disinfection did not cause alterations of the implant surface but resulted in distorted microbial cells. Electrochemical disinfection of implant surfaces using BDD electrodes may constitute a promising treatment option for cleaning dental implant surfaces without negatively affecting materials and surface properties. View Full-Text
Keywords: Candida; Enterococcus; debridement; peri-implantitis; disinfection; microscopy; electron; scanning Candida; Enterococcus; debridement; peri-implantitis; disinfection; microscopy; electron; scanning
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Göltz, M.; Koch, M.; Detsch, R.; Karl, M.; Burkovski, A.; Rosiwal, S. Influence of In-Situ Electrochemical Oxidation on Implant Surface and Colonizing Microorganisms Evaluated by Scanning Electron Microscopy. Materials 2019, 12, 3977.

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