If not addressed, the infection can spread to surrounding tissues, bone, and even the bloodstream, increasing the potential for severe complications. If you have persistent tooth pain, swelling ...

Leaving a cavity untreated could also cause more serious complications. In very rare and extreme cases, if the infection from a decaying tooth isn't treated properly, it may spread to your brain ...

Excessive drooling or facial swelling: These can indicate a more serious infection ... that catching dental issues early is vital to preventing more serious complications.