I am not a great dental patient.
I had to get a wisdom tooth pulled and opted for IV sedation. I remember them sticking my arm and then I don't remember anything until about 4 hours later despite the procedure lasting about 30 minutes.
I apparently walked out of the office, got in the car with my wife, walked up stairs to the theater room, and watched TV for hours. None of which I remember at all.
I highly recommend the valium I was given to take a couple hours prior to the procedure. Highly recommend. I now know why people abuse prescription drugs. I felt GOOD!