Silver mercury fillings in back teeth
The same teeth after the silver amalgam fillings are replaced with white composite fillings
Traditionally, cavities in back teeth were repaired with silver fillings, and white fillings were only used on front teeth. This was because the white filling material in the past was not as strong as silver amalgam, and so could not cope with the heavier chewing forces generated by the molar teeth. Over the past number of years, there have been significant advances in dental materials science, so that now white fillings are as good as silver amalgam fillings in most cavities.
Advantages of White Fillings:
- Excellent Aesthetics – they look and feel just like natural teeth.
- It is possible to bond(stick) white fillings to the tooth, so they require less of the healthy part of a tooth to be removed to hold the filling in place so that means less drilling of the tooth.
- There is no mercury in white fillings, which means they are kinder to the environment.v
- They do not swell in the cavity like amalgam does and so place less internal stress in the tooth than silver amalgam