I had a filling, but hurting from that day onwards

[dental]

Hi,

   I went for cleaning and full mouth x ray and had no problem at all. Dentist said that there is one molar which was not properly filled, it was filled above another filling , so he will clean up that and fill it again and put the crown. But I didn't feel any pain and no cavities.  I did the filling only and said I don't need the crown and paid large copay amount.
   I felt numb for 2.5 hours and after that it was a throbbing pain, I couldn't bear the jaw,ear pain and finally I get the headache on my left side. ..this is still continuing for past 1 month, I called the dentist many times, he asked to visit him, I visited 3 times, he said everything is fine, took x ray again and said everything is good. but you need crown, then the problem will be over.
Initially I had no pain at all. I said "I had no pain at all, now it is throbbing pain eventhough I don't use my left side to eat or chew, I don't eat any sweet thing". He keeps saying "that's why I said you need crown"
Still I feel pain which I never had even when I had real cavities.
Please advice me, what is going on in my tooth.
1. I guess he disturbed the nerve and filled it.
2.What should I do next.- check with another dentist?

Please advice. Thanks for your help.

[dental]

Thanks for the reply,
Yes, I constantly have pain which I can bear, one day I ate an apply slice on the left side the pain went to ear,jaw, head and unbearable for 4,5 hours, I used mouthwash, clove to reduce the pain. I don't use that left side to chew or eat at all. I use straw to drink tea.
One day I ate pop corn a handful, the pain went up for  4 hours, if i eat anything sweet also the pain goes up. after that 4 hours even drinking water is also a big challenge, I feel like it is going inside my teeth.

I forgot to include --after filling, the dentist kept the black paper and asked me to bite(as usual) to find the height of the filling. I felt very pumpy and kept saying it is pumpy and he kept grinding the filling. At one point I said, I think I feel pumpy because of the numbness, I think it is enough, what do you suggest. He again grinded one more time and left.  During my next visits too he grinded /smoothed the tooth.
I constantly feel pain even while talking ..
thanks for your help.

[Hamidreza Nassery , DMD, FICOI, FAGD, FICCMO]

Ok, you need to be more specific, can you chew on that tooth or not? Is the pain constant or does anything start the pain? ie, hot , cold, pressure?
Does the pain wake you up at night? do you find yourself clenching over that side?

answer those for me , and I would not put any crown on that tooth until pain is resolved. You would not build a house on shakey grounds... A second opinion is in order.. One month is a long time to be in pain.