Two Root Canals on One Tooth It is possible to have more than
one root canal treatment on a single tooth because some teeth do
have two roots. The need for another root canal can occur within
a few weeks of the original one or several years later.
Sometimes it's hard for a general dentist or endodontist (one
who specializes in root canal treatment) to find every canal. A
canal can sometimes be calcified or closed off or is simply not
obvious on an X ray or during endodontic therapy. Undergoing a
second root canal is perfectly fine and does not mean your tooth
will be lost. Hopefully, the second root canal will take care of
the extra root, and your condition should improve. Obviously,
the quality of the work, as well as your oral hygiene and
cleanings, is important for preserving your teeth over the long
term. You don't risk incurable periodontitis if there is only a
root canal or nerve-dying phenomenon going on. If you also have
periodontal disease, however, then that needs to be taken care
of by your dentist