since the prep work of shaping/filing of 20 teeth both front top and bottom was an all day affair for crowns, we took a break and i attempted to eat lunch with the freshly shaped front top teeth without a provisional so everything was exposed to what i ate and drank. what harm have i done by doing so? i returned to the dental office to do the bottom and he started to shape the bottom front teeth without cleaning the front top which was exposed to food and drink. thank you!