es, this is an excellent idea for a variety of reasons. One of the main ones is that the dental cleaning will get rid of any food particles that might be in there and would prevent your teeth from getting fully whitened. If you have stains on your teeth, they can get rid of those and you won’t have any plaque, which could keep you from getting the full effect. They will also be clean, which will make it easier to put the whitening agent on and keep any uneven coloring from occurring. The end result will be a much whiter set of teeth and a great smile for you to flash to others.