Doctors

Dr. John Gay graduated with a B.A.Sc. In Mechanical Engineering in 1972 from the University of Toronto and further pursued his degree as a Doctor of Dental Surgery in 1977 and was awarded the Albert E. Webster Memorial Scholarship for Operative Dentistry.

Dr. Gay completed an internship at St Michael’s Hospital in 1978 and completed his diploma in Oral and Maxillofacial Surgery & Anesthesia at the University of Toronto in 1981.

Dr Gay was a former director of Oral Surgery at St Michael’s Hospital and a former Chief of Surgery at Doctors Hospital. As such he was actively involved with undergraduate and post-graduate Dental Internship training as well as Oral and Maxillofacial Surgery programs. Dr. Gay was also part of the faculty at the University of Toronto within the Implant Research Group.

Dr. Chung moved to Canada from Guyana with his family when he was nine years old. For as long as he can remember he has always been intrigued with how things work. As he grew up he transitioned from taking toys apart to look inside them to looking inside of teeth.

Anthony completed his undergraduate degree at the University of Toronto and then followed up with his dental degree in Cleveland, Ohio at Case Western Reserve University. Personal goals to be an outstanding clinician led him to complete a program in advanced dentistry via CWRU and University Hospitals of Cleveland. The AEGD program provided valuable experience in the management of children and medically compromised patients.

Completion of the endodontic program at U of T then provided the skills to look even deeper inside of teeth. Along with clinical practice, teaching has also been one of Anthony’s passions. He continues to serve the profession in this capacity.

Understanding that a tooth is part of a greater biologic system and that the physiology of a tooth is interrelated to the physiology of the entire body, Anthony began a program in osteopathic manual therapy in 2011. He hopes to marry dentistry and osteopathy in the future with the idea of preventing the need for root canal treatment in some patients.

Anthony loves traveling with his camera. He has trekked to the top of Africa, through the mountains of Peru, and stood on the ice of Antarctica. In his heart, however, the Caribbean still beats.

Dr. Jim Robertson graduated from the University of Western Ontario in 1983, with the degree Doctor of Dental Surgery. He practiced as a general dentist in London for 2 years before continuing his post-graduate education at the University of Toronto. He graduated with a Diploma in Periodontics in 1987 and opened his specialty practice in Kitchener.

Dr. Robertson is married and has 2 adult children. He originally grew up in the Preston area of Cambridge and has lived in Kitchener for over 30 years. Outside of the office, he enjoys skiing and cycling, gardening, playing the piano, as well as building and making things work.

He maintains professional memberships in the Royal College of Dental Surgeons of Ontario, the Waterloo-Wellington Dental Society (serving on its executive and as its President in 1996), the Ontario Dental Association, the Canadian Dental Association, the Ontario Society of Periodontists and the Canadian Academy of Periodontology.

Dr. Katherine Zettle graduated from the University of Toronto Faculty of Dentistry in 1987. After completing a dental residency at Mount Sinai Hospital in Toronto, 4 years of private practice and traveling to work in fly-in communities in Northern Ontario, she returned to the University of Toronto to complete her specialty in Paediatric Dentistry in 1995. She then had her own practice in Guelph for 20 years until January 2015. She now travels to Nunavut to treat pediatric patients and instructs in the Graduate Clinic at the Faculty of Dentistry, University of Toronto.

Dr. Hengameh Bakhtiar has been an endodontist for nearly 20 years. She graduated as an endodontist from Esfahan University of medical sciences from her native Iran, in 2004. As a keen educator, she was an associate professor in the faculty of dentistry at the Tehran Azad University of Medical Sciences, where she taught graduate and postgraduate university students, for 18 years. Her other achievements include several publications in reputable academic journals, and multiple contributions at international conferences, mainly in regenerative endodontics. She is also a reviewer of many international endodontic journals.

Closer to home, for 2 years she was a visiting Professor at the Faculty of Dentistry, University of Toronto. Currently, she is an Instructor in the Faculty’s Endodontics Preclinic Department. In Canada, she obtained her Canadian General Dentistry license and practiced as a general dentist in several private practices, focusing entirely on performing root canal treatments.

In 2022, Dr. Bakhtiar was exclusively chosen for the Dental Specialty Assessment and Training Program (DSATP) of Endodontics by the University of Toronto, which accepts only one foreign-trained endodontist per year. She has successfully completed the RCDC Fellowship examination in endodontics and the Canadian Endodontics Board Exam and the US Integrated National Board Dental Examination (INBDE). Currently she is Instructor in Faculty of dentistry, University of Toronto and practicing as an Endodontist Associate in Ontario and Newfoundland and Labrador.