Nowadays fillings can be natural looking. Many people are more conscious about the way they look, so they don't want silver fillings that show when they laugh or smile.
It is usually best to change fillings only when your dental team decide that an old filling needs replacing. If so, you can ask to have it replaced in a tooth-coloured material. White fillings in back teeth are not available on the NHS, but they can be carried out privately.
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