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Teeth Whitening

Safe & effective teeth whitening at Perfect Dental Clinic

Teeth whitening uses special bleaching material on the teeth surface to brighten up the shade or color of the teeth. There are two different whitening procedures: in-office whitening and self-whitening at home. In-office teeth whitening uses highly concentrated bleaching gel for faster results. Self-whitening at home takes slightly longer since the concentration level of the bleaching gel is lower than that used in-office for your safety. At home, patients use customized trays and bleaching gel for 2 hours during the daytime or while you sleep at night for 2 weeks. Materials for teeth whitening are all imported from the US and proven its safety for both gums and teeth. Some patients may experience temporary hypersensitivity, which is a common symptom. If that happens, stop the procedure temporarily and resume 1~2 days after.

In-Office Whitening

In-office bleaching provides the quickest  way to whiten teeth. With in-office bleaching, the whitening product is applied directly to the teeth. These products can be used in combination with heat, a special light, and/or a laser. Results are seen in only one, 30- to 60-minute treatment. But to achieve dramatic results, several appointments are usually needed. However, with in-office bleaching, dramatic results can be seen after the first treatment. This type of whitening is the most expensive technique.  Whitening is performed by applying a high concentration of oxidizing agent to the teeth with thin plastic trays for a short period of time, which produces quick results. The application trays ideally should be well-fitted to retain the bleaching gel, ensuring even and full tooth exposure to the gel. Trays will typically stay on the teeth for about 15–20 minutes. Trays are then removed and the procedure is repeated up to two more times. Most in-office bleaching procedures use a light-cured protective layer that is carefully painted on the gums and papilla (the tips of the gums between the teeth) to reduce the risk of chemical burns to the soft tissues. The bleaching agent is either carbamide peroxide, which breaks down in the mouth to form hydrogen peroxide, or hydrogen peroxide itself. The bleaching gel typically contains between 10% and 44% carbamide peroxide, which is roughly equivalent to a 3% to 16% hydrogen peroxide concentration.

Self -Whitening Program
(Custom-Made Trays & Whitening Gel)

Impression of upper & lower teeth must be taken in order to custom make personalized whitening trays.

  • Brush your teeth first.
  • Apply bleaching gel onto the trays (Make sure to place gel on the area where it touches teeth surface)
  • Wear the trays over your teeth.
  • Wipe off excessive gel.
  • Wear the trays for more than 5 hours. (It is best to wear trays while you sleep at night)
  • Remove the trays next morning and rinse inside the mouth well.
  • Wash the trays with cold water using a toothbrush.
  • Store the trays inside the case.

FAQ on Teeth Whitening

How Long Do Teeth Whitening Effects Last?
Teeth whitening is not permanent. People who expose their teeth to foods and beverages that cause staining may see the whiteness start to fade in as little as one month. Those who avoid foods and beverages that stain may be able to wait one year or longer before another whitening treatment or touch-up is needed. The degree of whiteness will vary from individual to individual depending on the condition of the teeth, nature of the stain, the type of bleaching system used, and for how long.

Are there any side effects?
Some patients may experience hypersensitivity during the treatment. The Zoom! Light generates minimal heat which usually causes discomfort. On rare occasions, a patient may experience minor tingling sensation immediately after the procedure, however, it dissipates eventually. You can also ask your dentist to supply you with oral gel to apply after the treatment.

What causes tooth discoloration?
There are many causes. The most common causes are coffee, tea, colas, tobacco, red wine, etc. Consumption of tetracycline, certain antibiotics or excessive fluoride may also cause tooth discoloration.

Is whitening safe?
Yes. Extensive research and clinical studies indicate that teeth whitening under the supervision of a professional is safe. In fact, many dentists consider whitening as one of the safest cosmetic dental procedure. Any teeth whitening products is not recommended for children under 13 years of age, and for pregnant or lactating women.

Who Should Not Undergo Teeth Whitening?

Whitening is not recommended or will be less successful in the following circumstances:

Age and pregnancy issues. Bleaching is not recommended in children under the age of 16. This is because the pulp chamber, or nerve of the tooth, is enlarged until this age. Teeth whitening under this condition could irritate the pulp or cause it to become sensitive. Teeth whitening is also not recommended in pregnant or lactating women.

Sensitive teeth and allergies: Individuals with sensitive teeth and gums, receding gums, and/or defective restorations should consult with their dentist prior to using a tooth-whitening system. Anyone allergic to peroxide (the whitening agent) should not use a bleaching product.
Gum disease, worn enamel, cavities, and exposed roots. Individuals with gum disease or teeth with worn enamel are generally discouraged from undergoing a tooth-whitening procedure. Cavities need to be treated before undergoing any whitening procedure. This is because the whitening solutions penetrate into any existing decay and the inner areas of the tooth, which can cause sensitivity. Also, whitening procedures will not work on exposed tooth roots because roots do not have an enamel layer. Fillings, crowns, and other restorations. Tooth-colored fillings and resin composite materials used in dental restorations (crowns, veneers, bonding, bridges) do not whiten. Therefore, using a whitening agent on teeth that contain restorations will results in uneven whitening -- in this case, making the teeth without restorations appear lighter than those with restorations. Any whitening procedure should be done prior to the placement of restorations. Individuals with numerous restorations that would result in uneven whitening may be better off considering bonding, veneers, or crowns rather than a tooth whitening system. Ask your dentist what strategy is best for you.

Unrealistic expectations: Individuals who expect their teeth to be a new "blinding white" may be disappointed with their results. Smokers need to be aware that their results will be limited unless they refrain from continued smoking, particularly during the bleaching process. A healthy guide as to a reasonable degree of whiteness to achieve with a whitening process that would give a natural appearance to a person's teeth is a slightly whiter color than the whites of your eyes.

Darkly stained teeth: Yellowish teeth respond well to bleaching, brownish-colored teeth respond less well and grayish-hue or purple-stained teeth may not respond to bleaching at all. Blue-gray staining caused by the antibiotic tetracycline is more difficult to lighten and may require up to six months of home treatments or several in-office appointments to successfully lighten. Teeth that have dark stains may be better candidates for another lightening option, such as veneers, bonding, or crowns.

Your dentist can discuss the options best suited for you.