Fig. 4From: Comparison between platelet rich fibrin as space filling material versus xenograft and alloplastic bone grafting materials in immediate implant placement: a randomized clinical trialPRF Group. A Immediately placed implant with horizontal critical-sized gap. BÂ PRF after filling the gap around the dental implant. CÂ The collagen membrane after its application. DÂ The complete gingival healing after 1 month. EÂ An immediate postoperative cross-sectional CBCT image. FÂ A cross-sectional CBCT image taken 18 months postoperativeBack to article page