Figs 1A to L.

Preoperative intraoral periapical radiograph; (B) Intraoral periapical radiograph determination of working length; (C) Intraoral periapical radiograph of 11 filled with triple antibiotic paste; (D) Blood from the median cubital vein; (E) Centrifuged blood with three zones; (F) Membrane by compressing in a guaze cloth; (G) Clinical image of PRF membrane being inserted into the root canal; (H) Clinical image of permanent restoration is done; (I) Intraoral periapical radiograph after 6 months; (J) Intraoral periapical radiograph after 12 months; (K) Immediate intraoral periapical radiograph root canal is completely filled with MTA; (L) 36 hrs Intraoral periapical radiograph root canal is completely filled with MTA