Dr. Alexander Lock graduated from Case Western Reserve University School of Dentistry in Cleveland, Ohio, in 1998. In 1999, Dr. Lock furthered his education by completing a postgraduate General Practice Residency in Hospital Dentistry from the Veterans Administrative Medical Centre in Cleveland, Ohio. Upon completion of his residency, Dr. Lock continued in private practice in the United States before returning to the Toronto area in 2001. Married with two children, Dr. Lock uses what little spare time he has to enjoy sports, literature and playing the bagpipes.