Yeah, there was a crown on the root-canalled tooth, with a huge mess of rot up under it, where the old tooth was capped.
Removing a root canalled tooth is a tooth-pulling. The dentist numbs the jaw, investigates the tooth, and then uses a hand-held pick to break the dead tooth (dead bone) apart. The pieces are taken out with pincers, and if there is part of a root stuck in there, the dentist grabs it with pincers and rocks it back and forth until it comes out.
Rife machine and zapper users report that they avoid the infection risk by regular zapping of the tissue around the tooth, over the cheeks or from behind the ears.
Otherwise it is a dead bit of flesh rotting in your body.
removal is problematic if your immune system is very low.
The cost of removal is between 75-80% cheaper than getting the root canal
Zapping has the potential of releasing further metals or materials from an amalgamm'ed tooth, so weight your options with care and prayer.
I am still dealing with the socket infections that developed after the removals, but I handle it with olive oil pulling and olive leaf extract.