Fig. 6From: Establishment of perpendicular protrusion of type I collagen on TiO2 nanotube surface as a priming site of peri-implant connective fibersFITR-ATR spectra of CoI attached titanium surfaces with and without the ultrasonication. a Pre ultrasonication of CL group. b Pre ultrasonication of EPF group. c 3 cycles ultrasonication of CL group. d 3 cycles ultrasonication of EPF group. e 10 cycles ultrasonication of CL group. f 10 cycles ultrasonication of EPF groupBack to article page