No, dentures should not be whitened. They are not natural teeth so they will not respond to whitening toothpaste, solution, or kit. You can polish and clean your dentures, however, because they do commonly experience superficial staining. Dentures are made of tough plastic, such as acrylic, and they are designed with a set shade the patient chooses. The shade cannot be changed or altered. If you use a whitening product on your dentures, not only will it not address the surface stains, but it can also weaken or damage the denture. High-quality dentures are less porous so they are less likely to stain deeply. Staining is generally a build-up of plaque or biofilm that looks like staining. If you carry out a proper cleaning this should remove the issue, and you can soak them in a denture cleaner after you brush. If daily brushing isn’t sufficient to remove the staining you can have your dentures professionally cleaned. A simple scale and polish should have your dentures looking brand new. If you have a partial denture and your natural teeth are stained, you need to match the shades. Your dentist will match your partial denture to your natural teeth so the teeth whitening procedure should be done before that period.