College of Denturists of Ontario
The Public Regulator for the Profession of Denturism
Si vous desirez obtenir les informations du site en français, veuillez contacter le bureau a 416-925-6331 ext. 227 ou par email:
info@denturists-cdo.com. Merci!
Protecting The Public

What's New

  • Oct 14 New Registration Regulation Approved The College is pleased to announce that its latest Registration Regulation has been approved by the Government of Ontario. Read More
  • Oct 10 Fall 2025 Webinar Registration! The College is pleased to announce two new webinars for this Fall's line up of webinars. Live sessions will be held in the date and times below. As always, a copy of the webinars will be made available in the member portal at a later date. Feel free to register today! Read More
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Protecting the Public / Unregistered Practitioners

Unregistered Practitioners

It’s important for the public to be confident in the qualifications of the people providing their care. Only individuals who hold a Certificate of Registration with the College of Denturists of Ontario (CDO) can legally practise denturism, use the title “Denturist” or the designation "DD" or "Registered Denturist".

Sometimes, an individual may pretend to be a Registered Denturist and practise without actually being registered in Ontario. To use the title “Denturist” or  designation "DD" or "Registered Denturist" or to engage in the practice of denturism without being registered with the College is illegal. Individuals who engage in this illegal practice can be prosecuted under the Denturism Act, 1991, the Regulated Health Professions Act, 1991, the Criminal Code, and/or the Provincial Offences Act.

Members of the public and employers and the public are strongly encouraged to use Find a Denturist to verify the registration status of every Denturist in Ontario.

Christos Markou:
Christos Markou was a registrant of the College until his resignation on December 17, 2017. Mr. Markou lives in the Cornwall area. Mr. Markou is no longer authorized to fit, dispense, design, construct, repair or alter a denture, use the title "Denturist" or designation "DD" or "Registered Denturist" or hold out to the public that he is a member of the College. If there are any concerns that Mr. Markou is not complying with these requirements, please contact the College at 416-925-9331 ext. 225.