Fig. 6From: 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 mini-screw of the APH group. a 2 k × magnification, b 10 k × magnification, c 50 k × magnificationBack to article page