"The Prime Minister's dentist is believed to be Mervyn Drurian, of the exclusive London Centre for Cosmetic Dentistry in Hampstead, north London, but he was the soul of discretion when Mandrake called. If it is the case that Brown has become a grinder, then Drurian is likely to recommend an occlusal splint, which Brown would have to insert into his mouth at bedtime. The device tends to make the wearer look a bit like Hannibal Lecter, but it does protect the teeth from wear and reduce jaw muscle activity, and – good news for Sarah, perhaps – the noise of teeth grinding."H/T Events dear boy, events.