I am about to get 2 cavities filled. please give me suggestions on what to expect please than thank you?

Numbness: You will get anesthetics to get numb. Before an injectable anesthetics are used, a gel-like topical numbing cream may be applied to the gum to lessen the sensation during injection. You may be fit a rubber-sheet like cover over your teeth. This is called a rubber dam, which keeps dental water from going in throat. After fillings are placed, the dentist checks the bite with a piece of carbon paper.