Pain in Crowned, Root Canaled Tooth

[mas1859]

Tooth No. 19 is the source of occasional pain ranging from dull ache to acute temperature sensitivity.  Tooth can be used for chewing room temperature to warm food without pain.  Cannot chew hot food.  4 years ago tooth had constant pain.  Tooth was crowned to address suspect fracture.  Pain persisted and root canal was performed 3 years ago.  Tooth was OK for 2 years but has developed increasing sensitivity over past year.  There is some gum recession and root exposure local to this tooth.  X-rays appear normal and do not identify root abcess.

Why, how can a tooth that has had a root canal still hurt?  What are treatment options?

[scottma]

Assuming there is no periodontal pathology and root fracture, searching referred pain from upper teeth is advised.

[ILuvCali]

sounds familar!  I just saw my dentist and I have severe pain in my tooth that is crowned and also had a root canal twice on it because the roots were massive.
My dentist said that sometimes root canals just cant do the job and the tooth has to be extracted. It sux because he also said well if u dont wanna loose your tooth then u can see a specailist and have root canal number 3 but no guarantee it will fix it....
So ur not alone and im trying to make my decision!