It is possible that if the tooth was not painful prior to the placement of the temporary crown
, the bite may have been off. However, the pain may be a sign of nerve damage
. I would not be concerned about the durelon leaking, but i would be concerned about determining the source of the pain. If it is a nerve issue, then root canal
therapy may required, which would involve drilling through your new crown rather than removing it. Moreover, the tooth may be fractured through the root, and even if the tooth is crowned and root canal therapy performed you may still be in pain.