The Canadian Dental Care Plan is expected to start providing coverage to all eligible seniors in May. (CBC - image credit)Seniors aged 72 and older are eligible as of today to register for Canada's national dental care plan, but dentists still can't sign up for the program — even though they're supposed to start taking patients in just a few months. The $13 billion national dental plan is expected to provide dental care to approximately nine million uninsured Canadians by 2025. Carr said dentists have been pushing for a national dental care plan for years. Do you have questions about how Canada's new dental care plan may affect you?