After five years of 3 different re-constructions on a cracked/ decayed big back tooth, the nerve started to die (v.painful) and has been removed. I now have a temp filling and am awaiting full root canal treatment in a few (6) weeks. When I had temp filling it gave me a disgusting rotting food taste in my mouth. It fell out afer 2 days and the cotton wool dressing in it was digusting- obviously food had got in and decomposed in it'. Got a new one in and I am now getting the bad taste in my mouth again. Obviously it seems that the temp filling is not sealing the area properly; there isn't a lot of tooth left to attach it to. Please can someone tell me what do do. I am sure it must be giving me bad breath. I am thoroughly flossing and cleaning around it etc. Can I leave it without a temp filling until I have root canal treatment? Or would it be best for me to have it extracted? The Dentists don't seem to be arsed about it but I am very much. Any advice??