Sodyum Titanat Yüzeyin Koroziv Sıvılardaki Davranışının Konvansiyonel Titanyum Yüzeyler ile Karşılaştırılarak İncelenmesi

Abstract

Objective: Titanium (Ti) and Ti alloys are suitable options as implant material because they are biocompatible and form a corrosion protective titanium oxide layer. However, the oxide layer is sensitive to corrosive ions such as fluoride (F) and hydrogen peroxide (H2O2) which are normally found in human mouth. Commercially produced toothpastes, mount rinses and cariostatic gels contain between 0.1% and 1% content F concentration. Furthermore, H2O2 can be secreted during inflammatory reactions by bacteria in oral environment. The corrosion of dental implants and components can cause failure of dental implant treatment. The aim of this study was to analyse the effects of different F and H2O2 concentrations on different treated Ti alloy (Ti6Al4V) in surfaces. Material and Methods: The effects of different F (0.5%, 2.5%) and H2O2 (0.1%, 10%) concentrations on different treated Ti6Al4V surfaces [electro-polished, roughed, fine-roughed and sodium titanate-treated (NaTi)] were analysed. Scanning electron microscopy and inductively coupled plasma with optical emission spectrometer provided quantitative bulk elemental composition for Ti samples. Results: Median corrosion values of Ti (mg/L) and V (mg/L) corrosion levels in 10% H2O2 and 2.5% F solutions were significantly higher than 0.1% H2O4, 0.5% F and control solutions. Median Ti corrosion values observed in electro-polished, roughed and fine-roughed groups were statistically higher than NaTi treated surfaces. Conclusion: This study shows that low ion release on NaTi surfaces causes the least amount of corrosion. Consequently, NaTi coating should be considered as the best alternative for protecting Ti surfaces from corrosion.