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Static contact angle images of water on the surface of (a) as-fired Si3N4, (b) polished Si3N4 (c) PEEK, 600 grit, (d) PEEK, 2000 grit, (e) Ti6Al4V 600 grit and (f) Ti6Al4V 2000 grit. The Si3N4 samples show an acute angle suggestive of hydrophilic surfaces as compared to PEEK and titanium
