Tratamento Cirúrgico De fístula Bucossinusal Com Fibrina Rica Em Plaquetas E leucócitos: Relato De Caso: Surgical Treatment of Oroantral Fistula With Leukocyte- and Platelet-Rich Fibrin: Case Report. RNO 2019, 45 (1). https://doi.org/10.29327/25149.45.1-7.