Effects of Hard Thin-Film Coatings on Adhesion of Early Colonizer Bacteria Over Titanium Surfaces
Neslin Velioglu, Tolga Akova, Ahmet Ozkomur
article (Uluslararası, Hakemli) | Yazar(lar): Neslin Velioglu, Tolga Akova, Ahmet Ozkomur | Yıl: 2016 | Dergi/Kurum: IMPLANT DENTISTRY | İndeks: WOS.SCI | DOI: 10.1097/id.0000000000000355 | Anahtar Kelimeler: diamond-like carbon, titanium nitride, bacterial adhesion, dental implant — Özet: Purpose: The purpose of this
Purpose: The purpose of this in vitro study was to evaluate the effect of diamond-like carbon (DLC) and titanium (Ti) nitride coatings over Ti surfaces on the adhesion of early colonizer bacteria.
Materials and Methods: Specimens were divided into 3 groups (n = 10) according to different surface modifications: titanium nitride (TiN)-coated Ti discs (experimental group 1), DLC-coated Ti discs (experimental group 2), and uncoated polished Ti discs (control group). Discs were incubated in bacterial cell suspension (Streptococcus mutans and Streptococcus sanguis) for 1 hour, and the single colonies formed by adhering bacteria were counted by fluorescence microscopy. Surface roughness and topography were examined by atomic force microscopy.
Results: The surface roughness of DLC was lower than TiN coating and the control group. Statistically significant reduction of the number of adherent bacteria was observed on DLC-coated surfaces.
Conclusions: DLC coating over Ti surfaces strongly inhibits the adhesion of early colonizer oral bacteria.