A composite resin is a tooth-coloured plastic mixture filled with glass (silicon dioxide) first introduced in the 1960s. They come in a number of different shades which are matched as closely as possible to your natural tooth colour. Originally only used for front teeth because of their softer nature, modern improvements to their composition make them also more suitable for ‘back’ teeth.
Composite fillings only set in small increments and moisture control is very important in getting a good bond to tooth. This often means they take longer than Silver fillings to place.
In certain circumstances white fillings are not appropriate and due to setting shrinkage post filling sensitivity may last longer than when a silver filling is placed. To discuss options,risks and benefits and costs of each procedure please discuss this with the dentist.