Dr. Grisdale is a Board Certified Specialist in Periodontics and Prosthodontics with a former private practice in Vancouver, British Columbia. Dr. Grisdale received his undergraduate and graduate degrees from McGill University, as well as a post graduate degree in Restorative Dentistry and Prosthodontics. He then went on to the University of British Columbia where he received another postgraduate degree in Periodontics. Currently Dr. Grisdale is full time faculty member in the Department of Periodontics at Loma Linda University in Loma Linda, California.

Dr. Grisdale received an Award of Merit for Restorative Dentistry. He lectures extensively in the United States, Canada, Southeast Asia and Europe. He is a mentor for Periodontic and Prosthodontic Study Clubs. He is also a sessional lecturer for Continuing Dental Education at U.B.C. Dr. Grisdale has published in the area of treatment for dentin sensitivity, implants, bone regeneration and soft tissue periodontal adhesives. He is an active participant in clinical research and the study of contemporary periodontal products. He is a member of several professional societies.