Some possibilities: There could be several possibilities... Exposed roots, called ab fractions, which may or may not have decay. Also a deep cavity which is close to the root can be cold sensitive. Please see a dentist for treatment
Answered 11/23/2014
5.7k views
Nerve is dying: Unfotunately your tooth is going to need a root canal. Unless you just have very sensitive teeth. If you pain is severe, you wil probable need the root canal.
Answered 8/6/2012
5.7k views
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