HI is there a way of telling if your filling is stained or leaking ? i visited a NHS dentist recently who did not say there was any issue with a filling said the stain could probably be polished out. I had to go to a private dentist for other work who said the filling is leaking and needs replacing. How can i tell. is it worth replacing front tooth fillings for aesthetic purposes he said he wont need to remove more tooth but I'm really concerned about having a filling unnecessarily as would rather keep my tooth for as long as possible he is going to use composite filling. thanks in advance for any advice