By Martin Bagot People’s teeth are rotting away due to the rising number of “dental deserts” where they cannot access NHS dentists. Some 37% of adults – 17.2 million – fail to get regular check-ups, the Office for Health Improvement Disparities revealed last week. Two million have never seen a dentist. And a BBC investigation found 90% of practices in England are not accepting new adult NHS patients. The Mirror has launched the Dentists for All campaign for a service on the verge of collapse. Dentist Oliver Pierce, who has an eight-year NHS waiting list in Hull, faces a “gut-wrenching” decisio…