White Fillings
The main advantage of white fillings is their aesthetic appeal. The main disadvantage is their life expectancy. White fillings have always been considered less long lasting than silver amalgam fillings but there are now new materials available with properties comparable to silver amalgam, and these are proving to be very successful. The life expectancy of your composite filling can depend on the depth of cavity and its position in the mouth; your dentist is best positioned to advise you.
White fillings are more difficult to place than silver fillings so may take your dentist 15-20 minutes longer to complete and because they are considered to be a cosmetic treatment, they are not available on the NHS and must be paid for.