Porcelain veneers are wafer thin shells of porcelain, specially shaped which are 'bonded' (cemented) onto the front side of teeth. Usually on the front teeth which are exposed during a smile or eating. Mostly, dental veneers are used to cover up crooked, stained, misaligned, chipped or otherwise slightly disfigured front teeth.This can be purely for cosmetic purposes but also to straighten an irregular bite line and servers as a smaller measure than filing away the teeth for new crowns. Quite often, veneers are inserted to close up gaps between teeth closing (diastemas = space between teeth) and can also be used instead of braces for teeth that are only slightly misaligned.In a nutshell, veneers can improve the look of your teeth. A significant advantage of porcelain veneers over other types of cosmetic dental bonding is related to the fact that a porcelain veneer's surface is just that, porcelain.Since porcelain is a ceramic, and therefore glass-like, its surface is extremely smooth and impervious.This means that the surface of a porcelain veneer will not pick up permanent stains. So Porcelain veneers resist staining.Also veneers are translucent and do not immediately reflect light which gets reflected by the underneath tooth enamel, and this gives the veneered teeth a very real original toothy look.Last but not least, with veneers the dentists needs to file away much less of the original tooth than with crowns.