You may be thinking about dentures for those who have missing teeth. Permanent improvements, however, really are a far better option as dentures only have about one-fifth of the potency of normal teeth. Lasting options such as bridges allow you to stay a far comfortable life and will keep your teeth strong. If your teeth need treatment such as partial dentures see a professional to ensure that they are perfectly done.
Think about your reason behind attempting to accomplish that, before spending 1000s of dollars for veneers. Is the only purpose to have whiter teeth? In that case, skip the veneers and only bleaching or other whitening procedures.