Assisting patients in: Richmond Hill, Oak Ridges, and surrounding Ontario Areas Dr. David J. Stern graduated from The University of Toronto in 1989. He and his wife Irena, have two children, Daniel and Carly. For the last 29 years, Dr. Stern has maintained a successful private practice in the Greater Toronto Area. In addition to general dentistry, Dr. Stern devotes a large portion of his practice to the treatment of Sleep Disordered Breathing using oral appliance therapy. Dr. Stern is a member of The Ontario Dental Association (O.D.A.), The American Academy of Cosmetic Dentistry (A.A.C.D.),The National Sleep Foundation, The Canadian Sleep Society (C.S.S.) and is a Diplomat of The American Board of Dental Sleep Medicine (A.B.D.S.M)