Hi all,

Had a root canal on a molar back in February, got crown put on in
March.  Since then, I have minor lingering soreness in that tooth -
mainly when I bite.  Its not that bothersome, but I am worried that it
is there since I believe following a root canal I really shouldn't be
feeling anything from that tooth.  When the endodontist did the work,
he told me that a piece of the file he used broke off inside the tooth
and he couldn't retrieve it.  he told me its probably nothing to worry
about, but if it ends up bothering me further work can be done to deal
with it.  Is the soreness I am feeling possibly related to this?

Thanks in advance for any help!