Does hydrogen peroxide ruin teeth

Hydrogen peroxide can irritate oral tissues and alter tooth sensitivity, while repeated or concentrated use may damage the gums and the tooth surface.

Its effect depends on concentration, contact time, frequency, and whether the product is formulated for oral use.

Hydrogen peroxide is an oxidizing chemical used in some professionally controlled whitening products. Tooth enamel is mineralized, while dentine beneath it contains more organic material and can transmit sensitivity.

Do not swish household peroxide or place concentrated peroxide on teeth. Use only an oral product exactly as directed, stop if burning or marked sensitivity develops, and have cavities, cracks, gum recession, or restorations checked before whitening.

Seek dental care for persistent sensitivity, white or peeling gum patches, mouth sores, pain, or a change after a peroxide exposure. A dentist should assess a child or a person who swallowed the product.

What concentration and formulation were used? Ask whether the discomfort is from enamel, exposed dentine, gum injury, decay, or an existing restoration, and whether whitening is appropriate.