Dr. “Sandy” MacGregor established his paediatric dental practice at the corner of Yonge and Lawrence in the 1940s. He was the founding Chief of Dentistry at the Hospital for Sick Children and the first head of Paediatric Dentistry at the University of Toronto.
Dr. MacGregor had a busy practice and when Dr. Peter Tonisson joined him in the spring of 1976 as a General Practitioner, he expanded the patient base to include the whole family – from kids to parents and grandparents. His goal was always to look after the dental care of the individual as a whole.
Dr. Tonisson’s practice was modern, up-to-date and focused on prevention. It quickly outgrew the old style 1 room operatory, and moved and expanded twice before moving to the present larger location at 3080 Yonge Street.