crown and gum problem

i had a root canal and crown fitted to a tooth on the lower jaw last year. Since christmas i have been to the dentist 12 times with tooth problems mainly uncomfortable gums and a dull ache which feels like it is coming form the crown are or the tooth next to it. My dentist is becoming frustated as am i as she can not find anything wrong. Xrays are apparent revealing a near perfect root canal and no cavities are shown in the adjacent tooth. The dentist is lost and so am i can you offer any advice. Many thanks

[turkee23]

if its a back tooth....pull it.... or find another dentist and get a second opinion......you might have a crooked root which caused some nerve ending to still be in there causing you pain.... it will probably only get worse, and pain in the mouth is the worst!!!....

[kayla276]

see a specialist,   Prosthodontist, it is probably your best bet.   I got on here and this is what I was advised to do.    

I seen a specialist who figured out what my problem was.  For 4 months straight my general dentist could not find anything wrong. Actually 7, but.......

I am still in discomfort from hyper occlusion.   It is healing but not quite there yet.  I don't know if this is your problem, but.......... who would have ever thought a crown being too high and not adjusted right could cause so much pain.

[lynn117]

it could also be a root fracture which many times will not show up on an xray.