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  • Title: Microstructures of plasma-sprayed hydroxyapatite-coated Ti-6Al-4V dental implants.
    Author: Tufekci E, Brantley WA, Mitchell JC, McGlumphy EA.
    Journal: Int J Oral Maxillofac Implants; 1997; 12(1):25-31. PubMed ID: 9048451.
    Abstract:
    The purpose of this study was to investigate the microstructure of plasma-sprayed hydroxyapatite coatings and the elemental composition near the coating-substrate interface for two commercial implants, using the scanning electron microscope. Both coating surfaces and cross-sectioned specimens were examined. The results indicated that while the surface microstructures of both implants were consistent with the plasma-spraying process, the scale of the constituents was much finer for one product. In cross-section, both coatings exhibited minimal porosity and intimate contact with the titanium alloy substrate. It was found that limited interdiffusion of titanium and calcium occurred near the interface.
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