Daniel Oren1, Fares Kablan1, Samer Srouji1,2,3. 1. Oral and Maxillofacial Surgery, Oral Medicine Institute, Galilee Medical Center, Nahariya, Israel. 2. Chief of Oral and Maxillofacial and Oral Medicine Institute, Galilee Medical Center, Nahariya, Israel. 3. Faculty of Medicine in the Galilee, Bar-Ilan University, P.O.B. 1589, Henrietta Szold 8, 1311502 Safed, Israel.