Different factors can lead to teeth becoming discolored. Some of these factors include smoking, consuming tea/coffee or other colored foods, or aging. Teeth whitening/bleaching is often done for the removal of stains and to restore the natural color of teeth. Most people choose this treatment procedure for cosmetic reasons. The process will not cause any damage to your teeth if it’s conducted under correct supervision and following best hygiene practices. The tooth whitening procedure will probably need repeat sessions before you see a significant effect on results. Cost-effectiveness depends if you compare in-office treatments with over-the-counter methods like those that are found at pharmacies or online sites, or even those offered by professional dentists who practice their method based on your needs and preferences. First, there are two options for patients that they may choose from for tooth whitening: 1. Professional Tooth Whitening- The first option for patients tha...