White- or tooth-coloured fillings provide good durability and resistance to fracture in small- to mid-size cavities that need to withstand moderate pressure from the constant stress of chewing. They can be used on either front or back teeth. White fillings are a good choice for people who prefer that their fillings look more natural and can be used to restore decays, cavities or chipped teeth. They also can be used for composite bonding in order to improve the shape of the teeth and close small gaps between the teeth.