How much baking soda and hydrogen peroxide to whiten teeth
Do not mix household baking soda and hydrogen peroxide for whitening; peroxide strength and contact time need dental guidance.
The short answer
There is no universal household ratio of baking soda and hydrogen peroxide that makes a predictable tooth-whitening treatment; mixing them can irritate gums and wear enamel. Professional whitening uses a formulated peroxide product with controlled concentration, placement, and exposure time.
What is the direct answer?
What does this question mean?
Baking soda is a mild alkaline abrasive that can help remove some surface stain, while hydrogen peroxide is an oxidizing agent that can lighten some tooth discoloration. Abrasion does not bleach internal color, and peroxide can inflame oral tissues when its strength or contact is uncontrolled.
What can you do next?
Use fluoride toothpaste and a soft brush for routine cleaning rather than a homemade whitening mixture. If you want lighter teeth, have the cause of discoloration checked and choose a product or in-office method designed for oral use.
When should you seek dental care?
Arrange an examination before whitening if you have decay, cracks, gum recession, ulcers, restorations, or marked sensitivity. Seek care promptly after a mixture causes burning, persistent pain, swelling, or peeling tissue.
What should you ask the dentist?
Ask what type of stain you have, whether whitening will affect existing restorations, and which formulation and application method fit your teeth. Ask how to manage sensitivity and protect the gum margin.
Frequently asked questions
Will this mixture remove deep yellow color?
No. Deep discoloration may arise within dentin or from a tooth injury and needs diagnosis before treatment.
What if my gums burn after whitening?
Rinse with water, stop the product, and seek dental care if burning, pain, or tissue changes persist.