Evaluation of the Effect of Platelet Rich Plasma and Injectable Platelet Rich Fibrin on the formation of gingival invagination . Journal of Hama University , [S. l.], v. 5, n. 7, 2022. Disponível em: https://journal.hama-univ.edu.sy/huj/article/view/1198. Acesso em: 6 jun. 2026.