Teeth that aren’t all white

Teeth whitening procedures carried out by unqualified beauticians could leave patients with burns or lost teeth.

General Dental Council (GDC) figures showed a 26% rise in reports last year. There were 732 cases of illegal teeth whitening, but the regulatory body relies on reports from customers, so the real number could be much higher.

Failure to comply with registration can result in fines.

A BBC investigation found companies offer just a few hours’ training for fraudulent qualifications.