... autologous bone graft and application of a non-reabsorbable membrane Adele Scattarella1, Andrea Ballini1, Felice Roberto Grassi1, Andrea Carbonara1, Francesco Ciccolella1, Angela Dituri1, ... University of Rome “La Sapienza”, Italy Corresponding author: Dr. Andrea Ballini, Dept. of Dental Sciences and Surgery, Faculty of Medicine and Surgery, Uni-versity of Bari “Aldo Moro”-Italy, P.zza ... parti-culate bone graft. Background: Acute and chronic oroantral communications (OAC, OAF) can occur as a result of inadequate treatment. In fact surgical procedures into the maxillary posterior area...