I visited my lovely new dentist and asked about a discoloured tooth - what could be done to improve the look of the tooth? It is towards the back of my mouth and had a large grey filling done years ago - the tooth is sunken and grey but healthy and just has a big dark filling in it. The filling can't be replaced because it is too near the surface of the tooth. So I signed up for a crown. This would look great and I'd have a nicer smile. Now having major second thoughts - if it gets infected / has to be replaced / needs root canal / then I lose the tooth etc etc! Has anyone had / not had a cosmetic crown on a healthy tooth? Would you?