A composite or white (tooth coloured) filling is used to repair a tooth that is affected by decay, cracks, fractures, etc. The decayed or affected portion of the tooth will be removed and then filled with a composite filling.
There are many types of filling materials available, each with their own advantages and disadvantages. Typically, your filling would be either composite resin or procelain, the choice depends on your tooth strength. You and your dentist can discuss the best options for restoring your teeth.
Because composite fillings are tooth coloured, they can be closely matched to the colour of existing teeth, and are more aesthetically suited for use in front teeth or the more visible areas of the teeth.
As with most dental restorations, composite fillings are not permanent and may someday have to be replaced. They are very durable, and will last many years, giving you a long lasting, beautiful smile.