The authors seek to determine whether
The authors seek to determine whether whitening is effective and safe according to 25 studies published in scientific journals. The conclusion is that whitening products work.
Differences in efficacy between the products are mainly due to the levels of the active ingredients, hydrogen peroxide and carbamide peroxide. Tooth sensitivity and gum irritation are the most common side effects. The products with high concentrations of hydrogen peroxide are associated with greater tooth sensitivity.
Teeth whitening is ideal for patients who have healthy, unrestored teeth (no fillings) and healthy gums who would like a brighter smile. Patients with yellow tones to their teeth respond best. But this cosmetic procedure is not recommended for everyone.
Age and pregnancy issues. Bleaching is not recommended in children under the age of 16. This is because the pulp chamber, or nerve of the tooth, is enlarged until this age.