Q. Hi Dr Moore I am enquiring if it is safe to have the cosmetic laser treatment to whiten my teeth after one has had radiotherapy on their face. This radiotharepay was due to oral cancer 7 years ago where I hade entry zones to the front and right side of my face. I also have reduced siliva flow but it is easily manageable with a good cleaning program. I am getting married soon and would like to try some sort of whitening for my teeth as at the moment I get a clean bill of health everytime I visit my dentist and he advises me to contact a specialist. Regards