Teeth Whitening Trays – Are They Safe or Not?

Yes, custom trays are safe for you if you want to have pearly white teeth that can brighten your smile. We often hesitate to smile or get teased by the friends if we have the yellow teeth.

You must have tried some homemade tricks such as applying baking soda to get your teeth shade lighter which may or may not work for you.


You might sometime get frustrated and feel less confident about your smile. But now you don’t need to worry much about your yellow teeth cause the custom tray whitening technique made it easier for you.

The customized trays designed by dentist especially for you helps you to get a brighter smile. The best part of the method is you need not make as many dental visits as in professional bleaching, and you can easily do it at home.

Your dentist will monitor the bleaching effects over the time on follow up. The custom whitening method also has reduced the risk of gum irritation, throat infection, etc. (1) and provides more natural and brighter white teeth.

What is the custom whitening?

Custom whitening is the bleaching procedure that can be performed at home. It works best for the discoloration of the tooth caused due to extrinsic factors. Custom whitening is also useful for the fluorosis. (2)

If you decide to get custom teeth whitening, first of all, your dentist will perform the professional cleaning of your teeth followed by restoring your oral health such as performing caries removal.

Your dentist will now take the impression of upper and the lower jaw. The impression then poured with dental plaster, and the custom tray made on the prepared cast in the laboratory.

The dentist ensures the fit of thin plastic customized impression trays. The custom whitening trays are meant to fit like a glove to your teeth so that the whitening agent distributes evenly around teeth.

The custom whitening tray along with the teeth whitening kit is given to you for home use. The home use customized kit is safe and provides effective results.

Chances of damage to tooth’s enamel or gum tissue are minimal with this whitening method. You need to spread the whitening agent evenly on the tray and apply on your teeth for at least 4 hours a day for 2 weeks as instructed by your dentist.

The whole procedure performed at home in your comfort as the custom trays have no risk of soft tissue damage. Also, the whitening agent used for the in-home technique is specially designed to have a lower chance of sensitivity.

So, if you have already sensitive teeth, then even you can think of custom whitening method.

How the teeth whitening works?

The whitening agent makes your teeth shine by infiltrating through the enamel. Whitening agent passes through the enamel and causes the breakdown of discoloring substance, creating a glowing smile. (3)

But unfortunately, teeth whitening does not last life long. The effect of whitening depends on how you take care of your teeth further. Post-procedural care includes –

  • Brushing twice a day for an adequate time.
  • Flossing every day.
  • Use of mouth rinse.
  • Quit smoking.
  • Avoiding food or beverages which can discolor your teeth. For example tea, coffee, red wine, blueberries, etc.
  • Regular dental visits.

Custom whitening technique gives your gradual and more natural results. Excessive white or chalky appearance of the teeth after bleaching is not acceptable as people might think that you are wearing a denture.

Why should you choose custom trays?

Custom whitening trays are effective than the other whitening methods such as strips or trays that aren’t customized. This is because the custom trays are designed specifically for your teeth set.

They fit well, lining the contour of your teeth. Because of the excellent fit custom trays have the advantage such as –

1. Avoid gum irrigation

Custom made whitening trays cover the teeth thoroughly and they do not extend on the gum. The gum irritation can be completely avoided.

  • Tooth whitening agent causes gum irritation. To avoid this, the counter of the teeth is well replicated in the custom whitening tray. Overall, the tooth whitening agent does not come in contact with the gum tissue.
  • The tray border is smooth and rounded so that the tray cannot damage the gum tissue and avoids gum irritation.

2. Throat infection

Tooth whitening agent if swallowed causes the throat infection. Custom trays have a reservoir for the whitening agent.

Also, because of the proper fit of custom trays, they hold the whitening agent in the tray and around teeth only and do not allow to squeeze it out of the tray. Hence, the chances of throat infection minimized to a great extent.

3. Provides even whitening

Custom trays are the replica of your teeth. They contain every single groove, tooth contour as present in your teeth arrangement.

Due to this, the whitening agent flows evenly on every surface resulting in the even whitening of every tooth.

4. Require less time

If you wish to have white teeth but do not get time to visit your dentist more often, then the custom whitening trays are the best option for you.

You can get the customized trays and whitening kit for you from your dentist. After that, you can apply the trays with the whitening agent at home as instructed by the dentist. Custom whitening trays give you five shade lighter of your teeth in one attempt only. (4)


Final words

Custom tray whitening is the most effective, safe, non-invasive, painless and easy technique of teeth brightening. It also saves your time, money and also provide you best results.

The reduced tooth sensitivity and risk of gum tissue damage have added more comfort in the procedure. Now you can get your smile brightened just at your home in the safest possible way.

To maintain the bright smile, you further need to brush properly, maintain oral hygiene and visit the dentist regularly.


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