Results often last between six months and two years. Habits like smoking or drinking coffee can shorten that timeline.

Professional whitening is safe when performed under dental supervision and in accordance with product instructions.

Approved whitening treatments do not remove enamel when used properly. Overuse of harsh products may increase sensitivity.

Many yellow stains respond well to whitening treatment. Deep internal discoloration may require other cosmetic options.

Some people see results after one appointment. The number of sessions needed often depends on how severe the discoloration is.