Dr. Sosnay has been an Endodontic specialist, practicing in NYC,  for over a decade.  He received his Doctorate of Dental Surgery (DDS) in 1995 from New York University Dental School and was an NYU Dean's Dental Merit Scholar.  Dr. Sosnay received his Post Doctoral Degree in Endodontics in 1997.  He  also served as Director of Endodontics and Associate Clinical Professor at the Rose F. Kennedy Center - Jacobi Hospital, Albert Einstein School of Medicine. 

Dr. Sosnay has widely lectured on Endodontic theory, diagnosis, and treatment modalities, as well as Pediatric Endodontics & Trauma.  He is a member of the American Dental Association, New York State Dental Association, New York County Dental Society, American Association of Endodontists and Special Care Dentistry Association.