If you have a cavity in a tooth, a filling may be required to restore the lost tooth structure. Old fillings may also need to be replaced if they are broken or leaking. We only place tooth-coloured restorations as they are more aesthetically pleasing and do not contain substances that are harmful to human health. Fillings are placed in one visit. If you need more than one filling, multiple fillings can sometimes be done in a single extended appointment if that is more convenient.