Fig. 5From: Radiographic and histological evaluation of bone formation induced by rhBMP-2-incorporated biomimetic calcium phosphate material in clinical alveolar sockets preservationSchematic diagram of the identification of measurement point for GV. The GV measurement baseline is on the alveolar ridge’s crest. Following the long axis of the tooth, the red dot is a point for measuring bone density underneath 3 mm of baseline. The center part of the biopsy is the same as the GV-measured point of the CBCT imageBack to article page