A filling replaces part of teeth that has been lost because of decay or accidental damage. All fillings are of the colour of the teeth, carefully selected to match the original shade and shape of the teeth. A filling is normally carried out under local anesthetic. The affected area will be cleared of decay or loose filling, the tooth will be washed and dried. Then the filling will be inserted and smoothed off before a bright light is applied to set the filling. The filling will then be trimmed off and polished. These fillings can be natural looking as well. White fillings have always been considered less durable than silver amalgam fillings. But there are now new materials available with properties comparable to silver amalgam, and these prove to be very successful. The durability of a white filling can depend greatly on where it is in your mouth and how heavily your teeth come together when you bite. The tooth coloured fillings are mainly made of glass particles, synthetic resin and a setting ingredient. It is usually best to change fillings only when we decide that an old filling needs replacing. If so you can ask to have it replaced in a tooth-coloured material. There are alternatives such as crowns and inlays although they can cost a lot more. Veneers can be used on front teeth instead of crowns or fillings. Tooth colored fillings are used to fill in cavities and protects tooth from getting infected. Composite tooth coloured fillings contains powdered glass and ceramic which is added to a resin base. This type of filling is not as hard wearing as amalgam filling.th coloured fillings contain powdered glass and ceramic which is added to a resin base. This type of filling is not as hard wearing as an amalgam filling.
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