-Current Knowledge Future Perspectives of Bone Replacement Grafts Abdel Rahman Kassir, Carole Chakar. IAJD- International Arab Journal of Dentistry, 1/3/2018. -Root-resection Hemisection Revisited. Part II: A Retrospective Analysis of 195 Treated Patient Up to 40 Years Follow-up. Jean Marie Megarbane, Abdel Rahman Kassir, Nadim Mokbel, Nada Naaman. IJPRD- International Journal of Periodontics restorative Dentistry, 1/11/2018. -Root-Resection and Hemisection Revisited. Part I: A Systematic Review Nadim Mokbel, Abdel Rahman Kassir, Nada Naaman, Jean-Marie Megarbane. IJPRD- International Journal of Periodontics and restorative Dentistry, 1/1/2019. -Long Term Follow-up of an Iatrogenic Implant Endodontitis: a Case Report. Johnny Nohra, Abdel Rahman Kassir, Nadim Mokbel, Nada Naaman. IJPRD- International Journal of Periodontics and restorative Dentistry, 1/3/2019. -Treatment of dentigerous cysts with a modified Hawley plate in children: report of two cases with radiographic results Johnny Nohra, Abdel Rahman Kassir, Hadi Akel, Maroun Dagher. JOMS- British Journal of Oral and Maxillofacial Surgery, 1/1/2020. -Current Knowledge and Future Perspectives of Barrier Membranes: A Biomaterial Perspective Carole Chakar, Sara Khalil, Nadim Mokbel, Abdel Rahman Kassir. IAJD- International Arab Journal of Dentistry, 29/5/2020. -Implant placement with sinus floor elevation via the lateral approach using only absorbable collagen sponge: 12-months post-loading radiographical outcomes and implant survival rate. Gabriel Menassa, Abdel Rahman Kassir, Luca Landi, Nada Naaman, Carole Chakar, OMS- Oral and Maxillofacial Surgery, 22/09/2020.