Hi, i've had a problem with one of my teeth for about 14 months,  it's
on the lower jaw about 4 from the middle (or second last one) i think.
The problem was it was very sensitive when biting on it,  on release
of any pressure it would kill with pain.  They suspected a crack and
have been doing fillings on it trying to find it.  Anyway another
dentist there had a go at it as one last attempt before more drastic
work like root canal ect.  So after having that done he warned me it
might be sore for a couple days as he went quite deep and took alot of
tooth out.  Anyway he fixed the problem i was having, i can now chew
on that side of the mouth again without that horrible pain,  except
now i have a different pain,  whenever i chew on it i pretty much
straight away get pain in the jaw under that area of the tooth.  It's
hard to describe but it seems to feel the same as if you put your
fingers under the lower jaw bone and dig your fingers in,  well that
hurts for me anyway, don't know if it's normal.
Is it possible the filling he did has merely hidden the pain i used to
feel,  so now it's there but just feels different? Or could something
else be the problem.  The tooth is also sensitive to cold drinks now
which it wasn't before,  if i get anything cold on it though rather
than it feeling like pain from in the tooth it feels more like someone
has suddenly punched me really hard in the jaw.