Fillings are needed when teeth are damaged, broken, decayed and fractured. There are many different types of materials used, most common filling material is a composite resin (tooth coloured). For fillings to be successful, some parts of natural teeth structure is needed as all fillings are retain or bonded to existing teeth structure.
Composite resin is most commonly used material for fillings. It is tooth-coloured material that is used to fix broken or decayed teeth which adheres to the surface of the tooth though a process called bonding. As composite resin is bonded to the tooth’s surface, cavity design can be more conservative leaving more healthy tooth structure. Because there are variety of colours to match tooth being fixed, it can be used for fillings in both the anterior and posterior teeth.
Glass-ionomer cement (GIC) is also a white or tooth-coloured filling material. Main advantage of GIC is that it contains Fluoride, minimising secondary decay developing around the margin of the filling. However, as it is not as strong as composite resin, it is not usually placed in high load bearing areas, limiting its applications.
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