Fig.4 Histological images of trabecular bone^［16］.

(a) Artificial bone－alone group

(b) Autologous bone group

(c) Artificial bone＋fresh PRP group

(d) Artificial bone＋FD-PRP group

(e) Artificial bone＋BMP group

Trabecular bone formation of the FD-PRP group consisted of a tangled structure with more thin branches, compared to the autologous bone group. Trabecular bone formation is similar to that of the BMP group.