Application of Advanced Platelet-Rich Fibrin Plus (A-PRF+) in Revascularisation of Necrotic Immature Permanent Teeth

The intervention consists of the advanced platelet-rich fibrin plus (A-PRF+) revascularization protocol. It includes minimal mechanical instrumentation of the root canal, disinfection using sodium hypochlorite irrigation, and intracanal medicaments-initially calcium hydroxide followed by triple antibiotic paste. Peripheral venous blood was drawn from each participant into anticoagulant-free sterile tubes. The blood was immediately centrifuged at 1300 rpm for 8 minutes to obtain the A-PRF+ clot, which was then used as the scaffold material, extending through the root canal into the coronal cavity. The cavity was permanently sealed with glass ionomer cement. This protocol aims to promote regenerative healing and continued root development in necrotic immature permanent teeth.