Also known as porcelain laminates, these are thin shells or jackets of porcelain that are bonded to the front surface of the tooth towards the lip, to improve the color, contours or alignment of teeth. They can also be used to repair fractured or worn out teeth. The advantage of veneers over conventional crowns (caps) is that they allow all the aesthetic benefits of a crown while removing little or no tooth structure at all. Thus they help in conserving the existing healthy tooth structure.