Sinus Augmentation by Platelet-Rich Fibrin Alone: A Report of Two Cases with Histological Examinations

Figure 2

CT scans were performed and showed the implant (site 16). (a) A preoperative image shows the residual bone height is approximately 2 mm. (b) Six months after surgery, the original sinus floor was confirmed. Furthermore, gradually increasing radiopacity was observed around the implant up to the apex, which is the elevated site using PRF only. (c) One year after surgery, the original sinus floor is unclear and radiopacity around the implant increased.

(a)

(b)

(c)