Currently, teeth whitening is quite popular. Besides enhancing facial beauty, it also helps create personality and boost confidence. Teeth whitening can be done in various ways, such as laser treatment or purchasing equipment to do it yourself at home.
At-home teeth whitening is the process of whitening teeth by applying a whitening gel into a tray that is custom-molded to your mouth, then wearing it for a certain period by yourself at home under the guidance of a dentist. The active ingredients in the gel break down to release substances that can penetrate the enamel and dentin layers, reacting with the substances in the dentin. This causes the color molecules to break apart, fading the stains without harming the teeth. However, some side effects may occur in certain cases, such as tooth sensitivity when exposed to cold, but these symptoms usually disappear within 1-2 days. Most at-home whitening kits are used overnight for 1-2 weeks.
Custom trays are designed by the dentist when you visit the dentist for a dental examination. The dentist will provide advice and take an impression of your mouth to create a custom tray to fit over your teeth. Afterward, you will try the finished tray and receive instructions on the size and amount of gel to take home for use. Users should strictly follow the dentist’s instructions and maintain good oral and dental hygiene.
Precautions before teeth whitening
Smoking should be avoided because cigarette smoke can damage the soft tissues of the teeth and may interfere with the whitening process. Suitable candidates for teeth whitening are those with tooth discoloration caused by drinking tea, coffee, smoking, aging, and so on.
Advantages of at-home teeth whitening
- Can be done by yourself at home
- Has very few side effects and is highly safe
- Low chance of tooth sensitivity from whitening
- Not very expensive
- Convenient and can be done anytime, morning or night
- Portable
- At-home whitening should be done regularly every 4-6 months to help maintain tooth whiteness
Although teeth whitening can be done at home and whitening products are available on the market, it is advisable to receive guidance from a dentist. Those with gum disease, cavities, or pre-existing tooth sensitivity—possibly caused by gum recession, tooth wear, or leakage of dental fillings—may need treatment for these conditions before undergoing teeth whitening.
