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How does Teeth Whitening work?

Aug 31

Teeth whitening is a procedure that removes stains and discoloration from teeth by using bleaching agents. The most commonly used bleaching agent in teeth whitening is hydrogen peroxide. Hydrogen peroxide penetrates the tooth enamel and dissolves the molecules that cause stains. There are two types of teeth whitening: in-office whitening and at-home whitening. In-office whitening is done by a dentist and usually takes one to two hours.

At-home whitening is accomplished with a kit purchased from a drugstore or online retailer. A bleaching gel, mouth tray, and instructions are included in the kit. Teeth whitening is a temporary procedure, with results that fade over time. Coffee, tea, and red wine are all stain-causing foods and beverages. Brush your teeth twice daily and floss once daily to keep your mouth healthy.

Talk to your dentist first if you want to have your teeth whitened. They will be able to tell you if you are a good candidate for the procedure and recommend the best course of action. Teeth whitening is a simple and effective way to improve the appearance of your smile. However, it is critical to carefully follow the instructions and avoid over-bleaching, which can cause tooth damage.


What Caused the Color Change in My Teeth?

Your teeth can fade from white to not-so-white over time several reasons:


Food and Drink

Coffee, tea, and red wine are primary staining agents. So what are they in common? Chromogens are intense color pigments that attach to your tooth's white outer part (enamel).


Tobacco Use

Tar and nicotine, both found in tobacco, cause stubborn stains. Tar is inherently dark. Nicotine is colorless until it comes into contact with oxygen. The substance then transforms into a yellowish, surface-staining substance.



Dentin is a softer area beneath your teeth' hard, white outer shell (enamel). Brushing removes the outer layer of enamel, allowing more of the yellowish dentin to show through.



If you get hit in the mouth, the color of your teeth may change as your body responds to the injury by laying down more dentin, a darker layer beneath the enamel.



Antihistamines, antipsychotics, and blood pressure medications can all cause tooth discoloration. Furthermore, young children who are exposed to antibiotics like tetracycline and doxycycline while their teeth are developing (in the womb or as a baby) may develop adult tooth discoloration. Chemotherapy and radiation to the head and neck can also cause tooth discoloration.


Does Whitening Work on All Teeth?

No, it would help if you talked to your dentist before whitening your teeth because whiteners may not be effective for all types of discoloration. Yellow teeth, for example, will most likely respond well to bleaching, whereas brown teeth may not respond as well, and grey teeth may not bleach at all. Furthermore, caps, veneers, crowns, and fillings cannot be whitened. It will also be ineffective if your discolored teeth result from medication or a tooth injury.


Are There Any Consequences to Teeth Whitening?

Teeth sensitivity can occur in some people who use teeth whitening products. This happens when the whitener's peroxide penetrates the enamel to the soft layer of dentin, irritating the nerves in your teeth. Usually, the sensitivity is only temporary. You have the option to postpone treatment and try again later.

Whiteners can also harm tooth enamel and gums if used excessively, so follow directions and consult your dentist.

Sharp teeth can be temporarily painful or uncomfortable when bleached. Furthermore, home kits can burn or bleach the gums if misused. You can, however, trust the expert team at River District Smiles Dentistry. Our teeth bleaching & teeth whitening specialists are thrilled to offer cutting-edge dental technology and treatment methods in a soothing setting. For more information, please contact us!