D.M.D. awarded , in 1994 from Carol Davila University of Medicine.
1996-1999 Instructor at the temporomandibular and masticatory disturbances unit at Tel Aviv university dental school.
Awarded oral rehabilitation specialist in 2004, following post graduate program in prosthodontics at Tel Aviv University.
Clinical instructor at the oral rehabilitation department, Tel-Aviv University.
2008-2013 Chief medical manager, S.L.A. Clalit Group (the major general medical and dental health provider in Israel).
Since1996 private practice dedicated to Prosthodontics.
Dr Ghelfan has published over 11 articles with special interest in dental implant biomechanics.