Teeth Whitening Explained — What Works
From whitening strips to in-office treatments, the options are confusing and the claims are bold. This guide explains how teeth whitening actually works, what's realistic, and how to whiten safely.
Why teeth discolour, how whitening works, the main options compared, what's realistic, and how to protect your teeth and enamel along the way.
What's inside
- →Why teeth discolour — stains explained
- →How whitening works — the basics
- →The main options — compared simply
- →What's realistic — setting expectations
- →Sensitivity & safety — protecting enamel
- →Ask your dentist — before you start
For educational purposes only
This guide is educational information about dental and oral health — it is not dental or medical advice, diagnosis, or treatment, and it is not a substitute for care from a qualified dentist. It does not diagnose, treat, cure, or prevent any condition. See a dentist for regular check-ups and about any tooth or gum problem, and ask your dentist before starting any whitening or new oral-care product. Seek prompt dental or medical care for severe or persistent tooth pain, facial or gum swelling, bleeding that won't stop, or signs of infection (swelling with fever); facial swelling that affects breathing or swallowing is an emergency — call 911.