Fig. 2From: Improvement of osseointegration of Ti–6Al–4V ELI alloy orthodontic mini-screws through anodization, cyclic pre-calcification, and heat treatmentsFE-SEM images of the surface of a Ti–6Al–4V ELI alloy plate specimen of the APH group. a Top view with 10 k × magnification, b Top view with 80 k × magnification, c Cross-sectional view with 80 k × magnification. White arrows indicate where precipitates are locatedBack to article page