Tooth Whitening (Bleaching)

Tooth Whitening (Bleaching)

Patients often come to the dental clinic interested in Tooth Whitening or Bleaching.*

Why are my teeth changing color?

Tobacco use, ageing, medications and trauma are all reasons that teeth may change in color. Anything that goes into your mouth that has intense color pigments such a coffee, tea, red wine or the tar in cigarettes can become part of the white outer layer of the teeth. Certain types of medications can also darken the color of teeth. Additionally, some types of trauma, such as getting hit in the mouth, can cause color changes.      

Does tooth whitening work?

Whitening can work well on yellow, brown or orange colored staining. Whitening will not work as well on grey staining. Whitening will not work on fillings, crowns, veneers or stains caused by medication or trauma.

How does whitening work?

Whitening products work by penetrating into the out part of the tooth and breaking up the colored pigments. Many products are applied by a strip or via a tray with gel that is applied to the teeth.

Are there any risks to whitening my teeth?

The most common side effects of tooth whitening are tooth sensitivity and damage to the gums. Usually, these side effects don’t last for more than a few weeks after discontinuing bleaching.

Tips for bleaching.

·         See your dentist to make sure your teeth and gums are healthy!

·         Do not smoke or chew after using whitening products

·         Using bleaching products for an extended amount of time increases the risk for sensitivity and gum damage 

Please visit the dental clinic with any questions you may have about bleaching. We can help you choose a bleaching method and review instructions for safer use. 

* This article is based on information available from the Academy of General Dentistry. Website accessed on 02/17/2026

http://knowyourteeth.com/infobites/abc/article/?abc=B&iid=290&aid=1122