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Effect of coralline derived biphasic calcium phosphate shot blasting on titanium surfaces
Published in
Volume: 57
Issue: 1
Pages: 85 - 89
A novel method of converting the calcium carbonate skeleton of the corals vastly available in the Indian coast into biphasic calcium phosphate (BCP) ceramics by microwave processing for shot blasting of metallic implants has been developed. The BCP ceramics consists of an optimum balance of the more stable hydroxyapatite (HA) and the more soluble β-tricalcium phosphate phase (β-TCP, high temperature phase of HA) proving to be an ideal blast abrasive material for surface roughening leading to improved performance of the implant. The pure titanium surfaces modified by BCP shot blasting were compared with specimens roughened by blasting with (a) synthetic β-TCP and (b) alumina as well as those (c) chemically etched and treated. The surface modified specimens were evaluated by measuring their surface roughness, contact angle and surface morphology. Although the chemical treatment had the highest surface roughness of 2.64 μm and alumina blasted sample showed highest surface roughness value of 0.95 μm amongst mechanically roughened surface, the BCP blasted samples showed moderate surface roughness of 0.42 μm and low contact angle which are considered to be more suitable from osseointegration and surface wettability point of view.
About the journal
JournalTransactions of the Indian Institute of Metals
Open AccessNo