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How Does Teeth Whitening Work And Is It Safe?

by | Sep 12, 2022 | Teeth Whitening

Do you feel insecure about your smile? Want to brighten and whiten your teeth? If yes, teeth whitening is just the choice for you! With professional teeth whitening treatment, you can achieve the best and the brightest in one session. However, you may be wondering, if teeth whitening is safe or how it works, which is why our experts are here to help. The following blog will help you understand the types of staining and if it is a safe choice for you.

Intrinsic Teeth Whitening

Intrinsic stains occur when pigments incorporate into the enamel structure. At-home techniques will not work to remove intrinsic stains. You will have to visit the cosmetic dentist who will provide the best teeth whitening in Knoxville.

Intrinsic stains occur beneath the surface of the tooth. It is when pigments or stain-causing particles work their way through the outer layer of your tooth and accumulate in the enamel. Intrinsic teeth are tough to remove compared to extrinsic stains; however, they can be treated. 

Dentin is naturally darker and more yellow and is visible when the enamel is thinned or worn down from abrasion. There are different causes of tooth enamel erosion, such as ingestion of acidic foods and drinks. Although these stains are a little tougher to resolve, in most cases, they can be improved with the help of a professional.

Your treatment will be adjusted depending on the type of stain, it’s severity, you may need to opt for an in-office treatment. Professional teeth whitening treatment is the most effective and efficient way to remove stains. The whitening gel will be applied directly to your teeth, and it will also include a laser or a special light. This will ensure you have an even whitening the most safely and quickly possible.

Extrinsic Teeth Whitening

Extrinsic stains are dental stains that originate on the surface of your teeth, causing discoloration of the enamel. It is usually yellow or brown. Extrinsic dental stains are the result of your diet, lifestyle habits, and dental issues, a few are mentioned below.

  • Cigarettes and cigars
  • Chewing tobacco
  • Coffee
  • Tea
  • Sodas
  • Red wine
  • Beets
  • Blueberries
  • Tomatoes
  • Carrots
  • Curries
  • Tooth decay

As your enamel comes in contact with everything you eat or drink, over time, it can get discolored if you constantly consume foods that stain teeth. Extrinsic stains don’t go beyond the enamel surface, which means it’s easier to remove them.

You can get rid of these stains with teeth whitening toothpaste, Whitening strips, or over-the-counter take-home kits. However, these whitening methods provide one size fits all treatments, which means you might get uneven whitening, bleached gums, or increased sensitivity. There’s also a high chance these techniques or products won’t work at all. Therefore, the best way to ensure get the desired results is by visiting the cosmetic dentist in Knoxville, who will provide you with custom-made trays and gel that will whiten your teeth effectively and safely.

How Long Does Teeth Whitening Last?

The effect of professional teeth whitening can last up to 1-3 years or as little as 6 months. It varies from person to person based on your oral hygiene, diet, and lifestyle habits. If you smoke or consume tobacco, your results will be short-lived. Make sure you brush your teeth after eating dark-colored foods. Use a straw to drink dark-colored drinks. Brush and floss every day and consume teeth-staining foods in moderation.

Is Teeth Whitening Safe for Your Oral Health?

Teeth whitening is safe for your teeth, provided you follow the instructions properly. It is always best to visit the dentist to determine if teeth whitening is the best solution for your issue.

You will receive a thorough oral examination and cleaning, which will ensure your teeth are in good condition. In case you have any dental issues like cavities, gum disease, or tooth infection, the dentist can detect them during your examination. 

Most people face the issue of teeth sensitivity after teeth whitening. However, with professional teeth whitening, you can get treatment to reduce sensitivity. If you use over-the-counter products, you run the risk of gingival irritation. This can happen when the whitening gel comes in contact with your gums. Therefore, it is essential to consult a dentist before taking any step to whitening your teeth.


If you are looking for the best and most effective way to whiten your teeth, you should get your teeth professionally whitened. This will ensure you get your desired results quickly and effectively. You can always consult the dental team in Knoxville, who will work with you and provide you with the best smile.