Good luck sweetie!!! I'm keeping you and deacon in my prayers.
I'm sure all will go well- it's an extremly routine procedure, and with the incentive of the reward afterwards- you're associating the trip to the dentist office with a good thing (mc donalds) so you're teaching him it's not all bad at all.
/ When I graduate dental school, you can come to me and i'll fix your teeth so you don't hate dentists anymore