I am a new comer here. I have been suffering for the past 9 months or so. I had gone for a dental clean and the dentist told me that one of my fillings needed replacement. She replaced the filling and the pain started. I was told that now the tooth needed root canal treatment. The treatment continued but the pain persisted from the bone to my ears and the left side of my face and my cheek bone on and off for the past 9 months.

I have been on endless antibiotics and pain killers during the whole process. The crown broke and had to be replaced this month. The pain and feeling of extreme discomfort continues starting at the bottom in the bone of the tooth with the root canal. my ears feel blocked like in an airplane and sometimes the pain and a feeling of tightness radiates to the back of my ears and the whole ear.
I had a CT scan of my sinuses and they are clear. The CT scan of my face shows there is no Temporomandibular joint disorder. The ENT specialist says there is nothing wrong with my ear. There is a sign of some composite material that has exited the root and is seen below the root of the treated tooth in the scan. Is this normal? Has the dentist drilled in too deep into the root?
Please tell me if this is the cause of my problems and if this is going to continue and what is the solution. My dentist and his team, I feel, are trying to cover up something that they did wrong.
Please, please help me.