Patients are increasingly opting to have a ‘tooth coloured’ filling instead of the more traditional silver or mercury filling. There used to be an argument that white fillings were not as long lasting as silver fillings but with improving materials this is less likely to be the case.
There are issues around seeing decay under silver fillings and hence they may hide problems for longer (silver fillings are opaque to x-rays). A large problem may build up behind a silver filling which may need a more extensive (and expensive) solution i.e. a crown may be required if significant decay has weakened the tooth.
The main decision will come down to aesthetics – do you want all those dark fillings to be seen when you laugh? As shown by the photographs a white filling looks ‘unfilled’ and hence maintains the healthy, white appearance of your smile (laugh!)