When I moved from Oxford to Birmingham just over a year ago, I managed to sort out most of the administrative changes (like signing up with a new GP and informing people about the change of address) pretty quickly. However, for some reason, I never got around to registering with a new dentist. A few weeks ago, I realised with a shock that it must have been about 18 months since I had last seen a dentist, and signed up with one.