Professional teeth whitening procedures are typically carried out by dentists or dental professionals using various techniques to lighten the shade of your teeth. One common method involves applying a bleaching agent, usually containing hydrogen peroxide, directly to the teeth. This agent breaks down stains and discoloration, resulting in a brighter smile.

In-office whitening procedures usually take about one to two hours and can significantly improve the appearance of your teeth in just one session. Some dentists also offer take-home whitening kits, which involve custom-made trays filled with whitening gel that you wear for a specified period each day over the course of several days or weeks.

Professional teeth whitening tends to be more effective and quicker than over-the-counter options, and the results can last for a year or more with proper maintenance. However, it's essential to consult with a dentist before undergoing any whitening treatment to ensure it's safe and suitable for your dental health. Additionally, professional whitening may not be suitable for everyone, such as pregnant or lactating women or individuals with certain dental conditions.