When veneers are first placed, we recommend 48 hours before biting into anything such as pizza, hamburgers, and sandwiches to give the bonding material time to fully set. After that, you can use your judgment as to what you feel comfortable biting into. The veneers will become as natural as your own teeth. We have a patient who Dr. Ellison did veneers on in 1993 and still comes in for regular cleanings and they look just like new!