White composite fillings are a mixture of glass or quartz filler in a resin medium that produces a tooth coloured filling. They are sometimes referred to as composites or filled resins. Composite fillings provide good durability and resistance to fracture in small-to-mid size restorations that need to withstand moderate chewing pressure. Less tooth structure is removed when the dentist prepares the tooth, and this may result in a smaller filling than that of an amalgam. Composites can also be bonded or adhesively held in a cavity, often allowing the dentist to make a more conservative repair to the tooth.
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