Porcelain veneer thickness is very thin, about 0.3-0.5mm, many people worry that it will fall off. As a simple example, if the porcelain veneer on the table, accidentally crushed it. But it is glued to the teeth, and the teeth is one, generally will not fall off. But patients should also pay attention to the protection of porcelain veneers, that is, must be used properly. If you do the porcelain veneer after the usual gnawing particularly hard things, such as gnawing ribs, high melon seeds, gnawing hazelnuts, porcelain veneer may not completely fall off, but its cutting angle, or called the cutting end may have some wear. The use of improper, patients with it excessive eating some things, porcelain veneers can also fall off. So after doing porcelain veneers, need to be properly cared for, can not eat particularly hard things. Pay attention to the strength when eating, generally will not fall off.