Time has escaped me, as I meant to post this last week

Bailey (3yo) will have his first teeth cleaning at the vet's this Thursday.

Wondering of others' experiences, having done the same. Should I give him something before hand to help with the anesthetic? How about care afterwards? I am quite nervous, and my mothering instincts to care for him in the best way possible are in high gear.
What are other's experience in brushing their teeth? I, shamely, have not done this, but plan to after next week. Any tips on toothpaste and such?? I much appreciate input here. Cheers!