"is there anything that dentists do that ISNT deadly?"
They give you a courtesy toothbrush? I dunno.
In all seriousness, I never liked going to the dentist. I thought they were useless when I was a kid, and I think they are useless now. The last time I went to the dentist, I asked him what I could eat to help my teeth. He said not to drink sodas because they cause cavities. I said, I know, but what can I eat to help rebuild my teeth?
My question was met with a dumbfounded stare that looked not entirely unlike a baboon watching a firefly. It was then that I realized I had absolutely no reason or desire to ever see a dentist again.