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Materials 2018, 11(12), 2484;

In Vitro Comparison of the Efficacy of Peri-Implantitis Treatments on the Removal and Recolonization of Streptococcus gordonii Biofilm on Titanium Disks

Department of Periodontology, Université Catholique de Louvain (UCL)—Cliniques Universitaires Saint Luc, 1200 Brussels, Belgium
Institut de Recherche Expérimentale et Clinique (IREC), Pôle de Morphologie, Université Catholique de Louvain (UCL), 1200 Brussels, Belgium
Author to whom correspondence should be addressed.
Received: 19 November 2018 / Revised: 30 November 2018 / Accepted: 1 December 2018 / Published: 6 December 2018
(This article belongs to the Special Issue Biomaterials and Implant Biocompatibility)
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Objective: To compare the efficacy of four commonly used clinical procedures in removing Streptococcus gordonii biofilms from titanium disks, and the recolonization of the treated surfaces. Background: Successful peri-implantitis treatment depends on the removal of the dental biofilm. Biofilm that forms after implant debridement may threaten the success of the treatment and the long-term stability of the implants. Methods: S. gordonii biofilms were grown on titanium disks for 48 h and removed using a plastic curette, air-abrasive device (Perio-Flow®), titanium brush (TiBrush®), or implantoplasty. The remaining biofilm and the recolonization of the treated disks were observed using scanning electron microscopy and quantified after staining with crystal violet. Surface roughness (Ra and Rz) was measured using a profilometer. Results: S. gordonii biofilm biomass was reduced after treatment with Perio-Flow®, TiBrush®, and implantoplasty (all p < 0.05), but not plastic curette (p > 0.05), compared to the control group. Recolonization of S. gordonii after treatment was lowest after Perio-Flow®, TiBrush®, and implantoplasty (all p < 0.05 vs. control), but there was no difference between the plastic curette and the control group (p > 0.05). Ra and Rz values ranged from 1–6 µm to 1–2 µm and did not differ statistically between the control, plastic curette, Perio-Flow, and TiBrush groups. However, the implantoplasty group showed a Ra value below 1 µm (p < 0.01, ANOVA, Tukey). Conclusions: Perio-Flow®, TiBrush®, and implantoplasty were more effective than the plastic curette at removing the S. gordonii biofilm and preventing recolonization. These results should influence the surgical management of peri-implantitis. View Full-Text
Keywords: peri-implantitis; biofilm; dental implants; in vitro model peri-implantitis; biofilm; dental implants; in vitro model

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Toma, S.; Behets, C.; Brecx, M.C.; Lasserre, J.F. In Vitro Comparison of the Efficacy of Peri-Implantitis Treatments on the Removal and Recolonization of Streptococcus gordonii Biofilm on Titanium Disks. Materials 2018, 11, 2484.

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