1 Faculty of Dental Medicine, Hebrew University of Jerusalem, PO Box 12272, Jerusalem 9112102, Israel; Department of Oral and Maxillofacial Surgery, Hadassah Medical Center, Jerusalem, Israel. Electronic address: Michael.alterman@gmail.com.
2 Faculty of Dental Medicine, Hebrew University of Jerusalem, PO Box 12272, Jerusalem 9112102, Israel; Department of Oral and Maxillofacial Surgery, Hadassah Medical Center, Jerusalem, Israel.