Can Teeth Whitening Make Gums Bleed?

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Teeth whitening is a non-invasive procedure that can be a fantastic option for improving your smile. Although the gel used to whiten teeth is mildly caustic, it should not cause healthy gums to bleed. Additional measures are also taken to prevent damage to the gums during whitening procedures.

Peroxide gels used to whiten teeth do present some risk of irritation to the gums, but this is not normally associated with bleeding. Some discomfort may occur, but it should subside within days. If needed, the discomfort can be treated with over-the-counter pain relievers.

Our dentist places soft tissue guards in the mouth before applying the bleaching gel, which serves to protect the gums during the teeth whitening procedure. As long as the guards are properly sized and placed, this barrier should prevent the gel from touching anything other than the teeth.

Patients who experience bleeding after tooth whitening are likely to be suffering from gum disease. In patients with gum disease, even normal contact with a toothbrush or dental floss may provoke bleeding.

If a patient suffers from bleeding gums after having their teeth whitened, they should let our dentist know. An exam can be scheduled to identify the cause of the bleeding, and to select treatments for improving their overall gum health. At a consultation with our dentist, patients can learn more about how gum bleeding is prevented during teeth whitening sessions.


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