College of Dental Hygienists of Ontario
The College of Dental Hygienists of Ontario regulates the practice of dental hygiene in the interest of the overall health and safety of the public of Ontario.

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Practice Advisors

CDHO practice advisors provide confidential consultations to dental hygienists who seek assistance with issues that directly or indirectly affect the delivery of safe, competent, ethical dental hygiene care. 

You may reach a CDHO practice advisor by phone or e-mail:

416-961-6234 or 1 800-268-2346 



Mary Gow, RDH, BHA, MAEd

Mary Gow obtained her diploma in dental hygiene from George Brown College in 1986 and has practised for over 30 years, initially as a clinician and then as an educator. She continued her education and obtained her Degree in Health Administration from Ryerson University and Master of Arts in Education from Central Michigan University.  Mary joined the Professional Practice Team at the College in October, 2018. In her new role as a CDHO Practice Advisor, Mary will also manage programs and examinations as well as the Peer Mentorship Program.

Telephone ext. 238 | e-mail: