Ada approved whitening
Dentist-directed whitening uses peroxide gel; suitability depends on tooth condition, the product formulation, and how it is applied.
The short answer
Professional or dentist-directed whitening uses a peroxide gel selected for the patient, while product acceptance and suitability depend on the exact formulation and use.
What is the direct answer?
What does this question mean?
Whitening lightens stains in natural enamel and dentin through peroxide chemistry. Crowns, veneers, fillings, and bonding do not change colour in the same way, and sensitivity or gum irritation depends on concentration, contact, tooth condition, and application.
What can you do next?
Have the teeth and gums examined before whitening, especially if a tooth is painful or dark. Follow the supplied wear time, keep gel off the gingiva, and stop and report persistent irritation.
When should you seek dental care?
Seek care before whitening when there is decay, a crack, exposed root, gum disease, or unexplained tooth colour change. Persistent pain or a white or ulcerated gum area needs review.
What should you ask the dentist?
Ask which formulation is intended, whether the product is appropriate for your teeth, how restorations will be matched, and how sensitivity will be managed.
Frequently asked questions
Can home care cure the cause?
Home care may reduce irritation temporarily, but decay, abscesses, and structural problems need treatment.
When is it urgent?
Facial swelling, fever, or difficulty breathing or swallowing needs urgent medical attention.