A few weeks ago I got a temporary filling because my dentist said she wasn't sure if I would need root canal treatment. She gave me antibiotics and told me to wait and see if the pain went away. The pain is almost completely gone now but a few days ago I noticed a real bad, kind of bitter taste coming from the filling. I feel that the taste is getting worse. Now I am concerned that I might need to get root canal treatment even though the pain is gone.
What could be the cause of the bad taste?
Thanks for your help!