Dentists do have the right to refuse to see particular patients, NHS England's Chief Dental Officer told Good Morning Britain.
Dr Barry Cockcroft said "there's no absolute right to see a specific dentist."
Consumer watchdog Healthwatch have found examples of patients getting "deregistered" from their dental practices for missing single appointments, in one case to take a relative for cancer treatment.
More top news
Parts of the UK will feel colder than the Arctic Circle in the coming week as bitter winds make it feel -15C in some places.
At least three people have been killed in clashes in eastern Ghouta just hours after the UN Security Council backed a 30-day ceasefire.
Very Very Cold !