This is often desirable when teeth become yellowed over time for various reasons. The aim of the process is to lighten the shade of the teeth within natural levels. It is not a feasible treatment for everyone and should be avoided in certain circumstances. You will be assessed by your dentist and if suitable for the treatment the process will be explained to you in detail then.
Please note: dental professionals are the only people allowed to legally carry out tooth whitening in the uk, it should not be provided by anyone else.