Professional whitening is a dental procedure designed to lighten the color of teeth. It typically involves the use of stronger bleaching agents than those found in over-the-counter products. This treatment is performed by a dentist, ensuring safety and effectiveness while minimizing the risk of gum irritation. The process usually takes about an hour and can provide immediate results. Dentists may use techniques like in-office whitening or custom-fitted trays for at-home use. Regular maintenance and good oral hygiene can help prolong the effects of professional whitening, allowing individuals to enjoy a brighter smile for an extended period.