Fig. 2From: Effects of autologous concentrated growth factor on gingival thickness in periodontal accelerated osteogenic orthodontics: a 6-month randomized controlled trialThe process of PAOO. A The gingival contour of the patient. B Flap design. C, G Decortication. D, H Bone graft. E Covering CGF membrane. I Covering Bio-gide membrane. F, J Close the incision. yellow arrow: osseous dehiscenceBack to article page