Teeth whitening has become a popular cosmetic dental procedure to enhance one's smile and appearance. It works by removing stains from the enamel through the use of bleaching agents or whitening trays applied at home or in a dental office. It is important to first consult with a dentist to determine if one is a good candidate and to address any dental issues, as some medical conditions or tooth sensitivity may prevent or limit the whitening process. The dentist will examine the teeth, identify the cause of discoloration, and create a treatment plan that may involve changing products or techniques based on the patient's response to bleaching. Thorough communication with one's dentist is essential for safety and effectiveness.