Fig. 3From: The efficacy of concentrated growth factor and platelet-rich fibrin as scaffolds in regenerative endodontic treatment applied to immature permanent teeth: a retrospective study#11 in a 7-year-old girl of PRF group (a) The pre-operative periapical radiograph. (b) The post-operative periapical radiograph at the 3-month follow-up. (c) The post-operative periapical radiograph at the 6-month follow-up. (c) The post-operative periapical radiograph at the 15-month follow-upBack to article page