The at-home system could take as long as two weeks to fully bleach the teeth or it could be as little as three days. The in-office system takes just over an hour. Which system is right for you is an individual decision.
4a.Is it safe? Any side effects?
Several studies, during the past five years, have proven bleaching to be safe and effective. The American Dental Association has granted its seal of approval to some teeth bleaching products.