Fig. 2

Subgingival i-PRF and saline application following SRP. a) i-PRF was prepared from peripheral blood collected from patients. b) i-PRF was transferred into an insulin syringe for subgingival application. c) Probing depth measurement in the test site. d) Subgingival i-PRF application in the test site. e) Probing depth measurement in the control site. f) Subgingival saline application in the control site