For those with all their oral hardware, it is pretty easy- AMK makes a great "Dental Medic" kit that takes up almost no room. Add a small bottle of oil of clove (for those who can't deal with lidocain, or if you need it for a while), and you've got everything you need.

And Canoedogs, you finally pointed out to me what is missing in my big med box at my folks- my mother has an upper plate, and I never even thought of this.