Bad Root Canal

Hi all,

i had a root canal finished in the end of may.
I had major headaches all last week and realized (just on the weekend) that it was that root canal causing them!
What would cause this? Infection? Rejection? I don't know but it didn't hurt until last week.

I do know that the last filling I got (june) was, in the dentists words, 'pretty deep'. The next day I was in extreme pain! She said that my tooth is rejecting the filling and that she has to do a root canal now. I asked her that if she knew it was pretty deep why didn't she do a rc in the first place, she said that sometimes the filling is enough. Whatever! So I took 2 ibuprofens every 2 hours for 3 weeks until she could squeeze me in. She told me that it is quite common for people's teeth to reject fillings. I've never heard of this before, have any of you?

I don't feel that she is competent (sp?) and just keeps hurting me and giving me root canals to get my $$'s!! She seems more concerned about whitening and cosmetics than the pain. I guess that i'm paying for all the years (ya, I said years) that I didn't go to the dentist.

What is she going to do with this hurtin rc? I read below that you can drill into them like teeth. What if it breaks? I don't want to pay for this tooth all over again! It's too expensive.

Any comments?