Though hydroxyapatite (HA) coated implants are commercially available, its acceptance is still not wide spread due to challenges related to weak interfacial bonding between metal and ceramic phases, and low crystallinity of HA [1,2]. Moreover, developments in osteoconductivity and crystallinity of HA coatings are necessary to improve healing time and long term stability. The objective of this research is to test our hypothesis, which is chemistry and microstructure in induction plasma sprayed HA coating on Ti can both (1) improve the interfacial strength and (2) promote intimate implant - tissue integration while improving bone remodeling around the implant.
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