Getting a filling tomorrow

So, at the age of 31, I am getting my first filling in a wisdom tooth. This appears to have been partly caused by my venlafaxine, which makes my mouth quite dry and increases the chance of tooth decay. I'm resigned to it, although I'm annoyed it's happening and that the score of Dental Fillings vs Female Orgasms Inducted stands at 1:0.

Those who have had fillings themselves, what's the process like?