If a single spot on one of your teeth is not cleaned daily, the remaining bacteria will transform themselves into a sticky film substance called plaque. The plaque will produce acids which eat away at the enamel of the tooth and will eventually cause cavities. When the cavity gets through the enamel, into the underlying tooth structure (the dentin), repair or restoration is necessary. If there is sufficient tooth structure remaining after removal of all the caries, a filling is placed. If you need a filling, in general you have two options.
Amalgam (Silver) Fillings
Many people have amalgam (silver) fillings that have progressively blackened over time and caused staining of the teeth. Although amalgam is a functional material it does have several disadvantages. The most obvious problem is its unsightly appearance.
Composite (White Coloured) Fillings
Many people now choose to have their fillings replaced to achieve a natural appearance. Virtually invisible, White Fillings look just like your natural teeth so they will not distract away from your smile. Most cosmetic fillings are made from Composite Resin that can be placed in a single visit. Composite Resin Fillings are also bonded to the tooth surface, meaning the joins are sealed preventing further decay of the surrounding tooth structure.