Abstract
Peri-implantitis leads to implant failure and decreases long-term survival and success rates of implant-supported prostheses. The pathogenesis of this disease is complex but implant corrosion is believed to be one of the many factors which contributes to progression of this disease. A nanostructured titanium dioxide layer was introduced using anodization to improve the functionality of dental implants. In the present study, we evaluated the corrosion performance of silicon carbide (SiC) on anodized titanium dioxide nanotubes (ATO) using plasma-enhanced chemical vapor deposition (PECVD). This was investigated through a potentiodynamic polarization test and bacterial incubation for 30 days. Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) were used to analyze surface morphologies of non-coated and SiC-coated nanotubes. Energy dispersive X-ray (EDX) was used to analyze the surface composition. In conclusion, SiC-coated ATO exhibited improved corrosion resistance and holds promise as an implant coating material.
Highlights
Titanium and titanium alloy (Ti-6Al-4V) implants have been widely used to restore the function of missing teeth [1,2]
From the scanning electron microscopy (SEM) results, the coatings demonstrated the ability to conform to the nanotube surface
The diameters of Anodized titanium dioxide (ATO) nanotubes before coating and after coating were measured from SEM images and analyzed
Summary
Titanium and titanium alloy (Ti-6Al-4V) implants have been widely used to restore the function of missing teeth [1,2]. Several studies have demonstrated high survival and success rates for titanium and titanium alloys and the prostheses they support [2,3,4]. Titanium and titanium alloy implants exhibit relatively high strength, corrosion resistance, and biocompatibility [5,6,7,8,9]. In spite of the reported high survival rate for these implants, biological (peri-implantitis) and/or technical (screw loosening and fracture) complications can lead to implant failure and decrease the success of implant-supported prostheses. The cumulative complication rate was 48.03% and the cumulative success rate was 51.97% for an observation period of up to 16 years [10]
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