Went thru root canal long time back.
One of my tooth has bubbles formed inside it and the dentist
drilled, same ole thing with about 4 needles to numb the place and
extracted the roots and then fill up with white ceramics or
something.
Too bad my broken tooth recently cannot be saved with root
canal, so the dentist took out the whole tooth and the root that
was stucked on my lower sinus cavity.
You never know that a simple dental visit is just so simple,
because you never know what the dentists might find where you can
see in your mouth.