Ancient Egyptian dental work - photo

[nova_robotics]

my question is how they under cut the jaw - that would have been the effects of the abscess eating into the bone, or it was purposely done to give room under the inserted teeth - either way it would not have been a pleasant experience.

Remove a tooth and leave it for a few years and your jaw will undercut itself. It's actually a really big problem in dentistry because if someone loses a tooth you gotta get on that and repair it. If someone loses a tooth and waits a few years before repairing it there will be no jaw left to install an implant in.