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2002 Bathurst Streest Circa 2019

York Hill Endodontics is the longest, established endodontic specialty practice in Canada. It was started in 1965 by Dr. Jerry Smith. In 1981, Dr. George Sas joined Dr. Smith until his retirement in 2011. In July of 2014, Dr. Geoffrey Sas joined his father in practice.

York Hill Endodontics is an endodontic specialty practice dedicated to the exceptional care of it’s patients using the latest in dental technology.

Dr. George Sas and Dr. Geoffrey Sas are both Specialist Members of the American Association of Endodontists and the Ontario Society of Endodontists as well as the Canadian and Ontario Dental Associations.


During the COIVD-19 Pandemic and as per ADA and Mass Department of Health and Safety, our office is closed until further notice to elective dental/endodontic care. During this time, we may be able to accommodate some urgent dental emergencies after a telephone interview. Our office manager and front desk is taking telephone calls and trying to triage patients with acute pain. For safety of our dental staff, patients are triaged for symptoms of COVID-19 prior to their arrival at our office. Please call the office at 416-781-5251 for more information about this protocol. Note: Office appointments may take longer to allow for a more rigorous protocol of disinfection of all surfaces between patients following the CDC and OSHA standards for our collective safety. At York Hill Endodontics, we are committed to the highest standards of safety during your care under our supervision. When you arrive to the office, you will be asked to wash your face and hands before filling out forms. If you feel sick or are under the weather, we ask you to stay home until your symptoms are fully resolved. We are unable to treat patients with signs and symptoms of a cold, coughing, fever, sneezing, and other manifestations of an upper respiratory tract infection until those symptoms are fully resolved. We appreciate your understanding during this pandemic and our vigilance to provide the safest possible care to our patients and staff.