In-office teeth whitening typically takes 20 to 40 minutes, depending on the condition of your teeth and the type of whitening agent used. During the session, the dentist applies a strong whitening agent to your teeth, and sometimes they use light or a laser to speed up the process and improve the results. These agents work by breaking down stains and discoloration caused by things like coffee, tea, and smoking, which can significantly alter the color of your teeth.

The session will make your teeth look whiter and brighter than the first time, meaning you'll see a noticeable difference in color. This whitening treatment doesn't just remove stains; it also fades long-standing discoloration, making your smile look cleaner and more beautiful. After the session, you'll feel that your teeth have completely changed and are much brighter, and best of all, the results last a long time if you maintain good oral hygiene.