描述
Composite (white) fillings are mercury-free, plastic material matching natural tooth color used to replace missing parts of a tooth. Since they bond to the tooth, composite fillings restore most of the original strength and natural appearance of the tooth.
They are a mixture of acrylic resin and finely ground glasslike particles that produce a tooth-colored restoration. 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. It usually takes longer to place a composite filling.
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Fillings