A. Most people can have their teeth whitened and is very popular these days. If you are wearing a denture when you whiten the denture would not change colour with the bleaching gel so you would need to have a new denture. The same applies for bridgework and crown work as the porcelain would not change colour. Ask your dentist as to how many shades he would think your teeth would lighten as this depends on which strength of bleaching gel they use. I hope this is of help to you.