Dental Care Cosmetic Dentistry How Does Teeth Whitening Work? Share Pin Email More in Dental Care Cosmetic Dentistry Basics Procedures and Treatments Dental Emergencies Orthodontics Pediatric Dentistry Glossary Resources Updated April 20, 2016 Teeth whitening is done either with special chemical or with polishing agents. Understanding the difference will help you get better results. Up Next Up Next Video What is Teeth Whitening? Up Next Video Who is NOT a Candidate for Teeth Whitening? Up Next Video How Does the Dentist Whiten Teeth? Up Next Video Can Teeth Whitening Damage Your Teeth & Gums?