How Does Teeth Whitening Work?

If you're unhappy with the color of your teeth you may be wondering how you can brighten your smile. One of the most popular cosmetic dental procedures is teeth whitening. But how does it work? 

In this blog post we'll take a closer look at the process of teeth whitening and what you can expect if you decide to undergo this procedure.


What Causes Tooth Discoloration?

Before we dive into teeth whitening it is important to understand why teeth become discolored in the first place. There are many factors that can contribute to tooth discoloration, including:

  • Age: As we get older our teeth naturally become darker and more yellow.

  • Food and drink: Certain foods and drinks such as coffee, tea, red wine and dark berries can stain teeth.

  • Tobacco use: Smoking or using other forms of tobacco can cause teeth to become yellow or brown.

  • Trauma: A blow to the mouth or other trauma can cause a tooth to become discolored.

  • Medications: Certain medications such as doxycycline and tetracycline can cause teeth to become stained.

How Does Teeth Whitening Work?

Teeth whitening is a cosmetic dental procedure that uses bleaching agents to lighten the color of teeth. There are two main types of teeth whitening: in-office whitening and take-home whitening.

In-Office Whitening

In-office whitening is typically done at a dental office and involves the use of a highly-concentrated bleaching agent. Before the bleaching agent is applied Dr. April will clean your teeth to remove any plaque or tartar. A protective gel will be placed over your gums to protect them from the bleaching agent.

Once your teeth are prepped the bleaching agent will be applied to your teeth. Depending on the product used a special light or laser may be used to activate the bleaching agent and speed up the whitening process. The bleaching agent will be left on your teeth for a certain amount of time, and may be reapplied multiple times to achieve the desired level of whiteness.

At-Home Whitening

At-home whitening is a more gradual process that involves the use of a lower-concentration bleaching agent. Dr. April will create custom-made trays that fit over your teeth and will provide you with a bleaching agent to use at home. You will fill the trays with the bleaching agent and wear them for a certain amount of time each day depending on the product used.

It's important to follow Dr. April’s instructions carefully when using at-home whitening products to avoid damaging your teeth or gums.

Is Teeth Whitening Safe?

Teeth whitening is generally safe when done by a dental professional but there are some potential risks and side effects to be aware of. These can include tooth sensitivity, gum irritation and damage to the enamel of your teeth if the bleaching agent is used incorrectly or too frequently.

Before undergoing any teeth whitening procedure It is important to talk to Dr. April about whether it's right for you and what you can expect. We can help you determine which type of teeth whitening is best for your needs and can provide guidance on how to care for your teeth after the procedure to maintain your bright, white smile!


In conclusion, teeth whitening is a safe and effective way to improve the appearance of your smile. Whether you opt for in-office whitening or at-home whitening the result can be a brighter more confident smile that you'll be proud to show off.

Schedule your free consultation HERE!

-Your Distinctive Dental Implant Team

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Cosmetic Dentistry: Improving Quality of Life