Where clinically appropriate, white fillings are available on the NHS and are generally charged as Band 2 (£70.70).
For example, if you need a filling in one of your front teeth (incisors and canines), the filling material of choice may be a white filling.
If the filling is in one of your back teeth (such as molars and premolars), for a large filling the more clinically effective option may be an amalgam filling (a silver-coloured material).