Abstract
To mitigate the corrosion of titanium implants and improve implant longevity, we investigated the capability to coat titanium implants with SiC and determined if the coating could remain intact after simulated implant placement. Titanium disks and titanium implants were coated with SiC using plasma-enhanced chemical vapor deposition (PECVD) and were examined for interface quality, chemical composition, and coating robustness. SiC-coated titanium implants were torqued into a Poly(methyl methacrylate) (PMMA) block to simulate clinical implant placement followed by energy dispersive spectroscopy to determine if the coating remained intact. After torquing, the atomic concentration of the detectable elements (silicon, carbon, oxygen, titanium, and aluminum) remained relatively unchanged, with the variation staying within the detection limits of the Energy Dispersive Spectroscopy (EDS) tool. In conclusion, plasma-enhanced chemical vapor deposited SiC was shown to conformably coat titanium implant surfaces and remain intact after torquing the coated implants into a material with a similar hardness to human bone mass.
Highlights
The use of titanium in dental and orthopedic implants has been well reported in the literature.Since the first studies reported by Brånemark, significant enhancements have been made to the structure, chemistry, and procedure of placing titanium implants [1,2,3,4,5]
silicon carbide (SiC) used as a protective coating for dental ceramics was shown to exhibit delamination when placed in a corrosive solution over time, which was mitigated by annealing and plasma treating the SiC after deposition [71]
We have shown that PECV-deposited SiC for the use of a protective coating can conformably coat titanium implants and remain adhered to the surface after implant placement into Poly(methyl methacrylate) (PMMA)
Summary
The use of titanium in dental and orthopedic implants has been well reported in the literature.Since the first studies reported by Brånemark, significant enhancements have been made to the structure, chemistry, and procedure of placing titanium implants [1,2,3,4,5]. The use of titanium in dental and orthopedic implants has been well reported in the literature. Various surface treatments and designs of titanium implants have been proposed by research groups and companies to improve the survivability of these implants [4]. In addition to these enhancements, alternative materials such as zirconia have been introduced in implant dentistry [6,7,8,9]. Commercially pure titanium (cp Ti) and titanium alloys are utilized as implants due to their relatively high corrosion resistance, osseointegration, strength, and biocompatibility [12,13,14,15]
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