What are the side effects of teeth whitening?

Teeth whitening is generally considered safe and effective if the whitening gels contain 10 percent carbamide peroxide or less. However, if the composition is more, it can weaken the tooth enamel, although the content of fluoride present in the whitening gel can minimize this effect.

There is also a possibility that chemical burns may develop on the gums and mucous membranes if too much bleach is in contact for too long. A professionally made custom tray from your dentist together with appropriate home care instructions and compliance will reduce the chances of this effect.

Tooth sensitivity is another common side effect which will typically resolve in one to three days after the whitening process is complete.

If your teeth become sensitive during the whitening treatment, your dentist will probably attempt to lessen the irritation to the teeth’s nerve tissue by shortening the time used for the whitening process each day. Another option will be to apply a desensitizing gel after the whitening procedure. Sometimes your dentist may also recommend using desensitizing toothpaste for relief.

Less common side effects are sore throats, headaches and a prickling of the tissues inside your mouth. People very rarely experience an allergic reaction to the chemical used. Most people get very slight side effects that are tolerable and they can continue with the whitening treatment to completion. Generally, these mild effects will settle within two to three days after the treatment.. Dentists usually suggest to keep away from hot or cold food and drinks within the immediate 48 hours of whitening treatment.

Moreover, with the advancement of technology most teeth whitening gels are extremely safe when used only under the direct supervision of a professionally qualified dentist. Once the whitening process is complete, it is important to maintain good oral hygiene by brushing and flossing your teeth regularly and having regular cleanings at least every six-months.



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