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
The pair had been socialising with friends downstairs for 15 minutes before checking on their child, a court heard.
Zac Goldsmith lost his Richmond Park seat in a shock defeat to the Liberal Democrats.
Nicola Sturgeon has suggested Theresa May called a snap general election before alleged Tory expenses fraud in 2015 "catches up with her".