Last year I got root canal treatment for one of my tooth but now it has become sensitive... If I drink anything hot/ cold I feel pain in the tooth which was treated with root canal. Now I'm confused why tooth has become sensitive
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Hi...normally there shouldn't be any sensitivity or pain. But, if adjacent tooth has cavity or incomplete rct filling of same tooth or if vital pulp tissue is left inside , then only sensitivity happens. It can be rectified by redoing it.
You must get an x Ray done for same tooth to see if the root canal treatment is done properly or not. Pain might also be due to food lodgement below the gums.
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