Is Teeth Whitening Permanent? Common Questions

Teeth whitening is one of the most asked-about treatments in cosmetic dentistry. We have answered our patients' most common questions for you.

How long does it last?

Depending on your diet and habits, the effects of whitening usually last 1–3 years. Drinking tea and coffee and smoking cause the color to darken sooner. Short touch-up treatments with at-home trays help maintain the results for a long time.

Does it damage the teeth?

Whitening performed under a dentist's supervision with gels of appropriate strength does not cause permanent damage to tooth enamel. Temporary sensitivity may occur and goes away within a few days. Unsupervised products bought online, however, can irritate the gums.

Do crowns and fillings whiten too?

No. Whitening only affects natural tooth structure. If you have fillings or crowns on your front teeth, they may need to be replaced after whitening to match the new shade.

Who should not have it?

Whitening is not performed on people who are pregnant or breastfeeding, children under 16, or anyone with untreated cavities or gum disease. Oral health is restored first, and then whitening is planned.