First off, the robot cannot properly administer Novacaine in the specific locations along the nerve centers like I can (if I feel like it).
Next, while drilling in an automated fashion can be done, each jaw is uniquie, and thus going into the jawbone is now highly likely, various sepsis can result, greater damages and stress fractures will be created, and the fillings impacting and overlaying the bloody sepsis with an impregnible layer.
Proper cleaning would still need to be performed by our nubile Hygenists. Little Katie... Marla... others...
Also, when the process is complete, you still need a dentist to check it's work, and my billing will need to go up in tandem with the costs/maintenance of such a machine.
And by the way, can a machine properly grope an unconscious patient of legal age???? I think not.
Octor! Octor! Ith urts lik hurrl!
Recorded voice: "I'm sorry, the Dentist isn't in
at the present time would you like to see a movie?"
"By the way the Robotechnition has decided you would
benefit from a tongue stud, would you like Gold, or
Stainless Steel?"
Murrrf! Gaaaagh!
"Thank you that will only take a minute and add slightly
to your bill. Would you like novacaine with that?"
Arrrrrrgh!
"Ok, your decision."
Ieeeeeeeeeeeeee!
"Now that looks stunned, I must say.
Please see the Roboreceptionist on your way out."