In-office teeth whitening
The first professional option is commonly referred to as “in-office” whitening. This procedure is performed in a dental office. An in-office whitening treatment may include the use of the whitening gel by accelerating the peroxide with some special UV light.
During an office visit, your dental professional will apply the whitening gel and, depending on the system being used, will shine a light source directly onto the teeth. The entire office visit generally takes about 90 minutes with immediate results.
At-home teeth whitening
Tray bleaching is a type of professional whitening that uses custom-made trays and whitening gel only available through your dentist. The whitening gel is placed in custom-fitted trays that fit perfectly over your teeth. As the peroxide in the gel breaks down, hydroxyradicals help whiten stained teeth. This process whitens all your natural teeth and may contain ingredients intended to provide maximum comfort. At-home professional tray whitening generally takes 10-14 days, although you may notice results in as little as three to five days.