Is whitening bad for teeth?

There is no doubt that teeth whitening works, but the question is whether it is harmful to your teeth.

The short answer is that it depends. In most cases, it is considered safe, but some people may take it too far and damage their teeth as a result.

The only thing we can recommend is that you always follow the instructions when purchasing the products and that you always listen to any advice and recommendations you may receive from your dentist.

To fully comprehend the impact of teeth whitening, we must first discuss what is contained in these products:

  • Hydrogen peroxide or carbamide peroxide is found in high-quality teeth-whitening products. Higher concentrations, which are only available from your dentist, are more effective and provide longer-lasting whitening results. Peroxides can also cause tooth sensitivity, gum irritation, and chemical burns to the mouth, throat, and tongue.
  • Some less expensive products contain abrasives, which do not whiten teeth but do remove surface stains. However, using these products can lead to additional problems and should be done in moderation.

Side effects of Teeth Whitening

Teeth whitening can have a number of negative side effects. Tooth sensitivity and gum irritation are possible side effects. However, according to the Cleveland Clinic, gum irritation is usually caused by ill-fitting whitening trays (rather than the bleaching agent itself), and sensitivity and tissue irritation usually go away within one to three days of finishing the treatment.

According to one 2014 study, strong bleaching agents can cause soft tissue (gum) burns, a burning sensation in the throat, and stomach upset. The review also mentions that there is still debate about whether teeth bleaching affects the physical structure of teeth, including the enamel.

When to Avoid It

While teeth whitening has cosmetic benefits, it is not for everyone. Teeth whitening is frequently costly and does not work on all types of tooth discoloration. The American Dental Association states that whitening agents are ineffective on veneers, fillings, crowns, and caps and are unlikely to work for discoloration that is brown, gray, or caused by injury or medication. That is why it is critical to consult with your dentist before investing in teeth whitening products.

How Often Should I Whiten?

Too much whitening raises the risk of negative side effects like tooth sensitivity and damage to tooth enamel and gums. However, there is no formal recommendation for how often teeth can be whitened safely. That’s why it’s critical to seek your dentist’s advice and adhere to all product directions. After one month, some people notice that the whiteness has faded, while others can last a year without needing another whitening procedure.

What about the enamel?

Enamel on teeth is the toughest tissue in the body, even tougher than bone! The enamel’s duty is to protect the dentin, which is the softer and more sensitive inner tooth. The most prevalent indicator of damaged enamel is yellow discolouration of the teeth. This raises the question of whether teeth whitening harms the enamel. Teeth whitening does not harm your tooth enamel, so the answer is no.

Signs Of Enamel Erosion

  • Pain is caused by sensitivity to specific foods and temperatures.
  • Discoloration in the color yellow.
  • Teeth may become rougher, uneven, or jagged as they age.
  • On the surface of your teeth, indentions may occur.


Always read the directions and do precisely what your dentist recommends when it comes to teeth whitening. Teeth Whitening is not harmful to your teeth as long as you follow these guidelines.


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