Hello! I dropped Maxi off at the vet this morning at 7am to get neutered, microchipped, and have one canine baby tooth extracted. (his lower canine is growing inward and hitting the roof of his mouth)

he's only 4.5 months but the vet really pushed to do this asap so that the baby tooth doesn't get in the way of his new teeth and this will give him a better chance of having healthy teeth as an adult.
I'm at work now but I cannot FOCUS... so I thought I would ask my fellow YT's for advice on things I'll have to do or what to expect when I pick him up.
Any input is appreciated