I think it would be incredibly difficult using those tools on yourself and trying to do something like a root canal would be impossible. So, they probably go to someone else and feel weird being the patient.
I am friends with several dentists and they go to other dentists in their practice. They visit the hygienist too.
haha...I would hope so...hate to see a dentist with bad teeth!
No I thought about this the other day seriously... I'd say they do themselves... with those metal hooks and whatnot. I'd guess they don't get cavities because they know better.. hmm