Fig. 2From: Application of sticky bone combined with concentrated growth factor (CGF) for horizontal alveolar ridge augmentation of anterior teeth: a randomized controlled clinical studyCGF (a), Sticky bone (b), Sticky bone was placed in the bone defect area and covered with collagen membrane and CGF membrane in Group 1 (c, d), Bone powder particles mixed with saline were placed in the bone defect area and covered with collagen membrane in Group 2 (e, f)Back to article page