Bright smile whitening kit
A home whitening kit uses peroxide in a tray or strip to oxidise stain molecules in natural enamel, with results shaped by fit and tooth condition.
The short answer
At-home kits place peroxide gel against teeth. A fitted tray can keep gel more evenly distributed than a generic tray, but neither method changes crowns or fillings.
What is the direct answer?
What does this question mean?
Inspect the tray, use only the directed amount, and keep gel away from the gingival margin. Do not combine products or repeat applications to compensate for a disappointing result.
What can you do next?
Arrange care for cavities, enamel cracks, exposed roots, or strong sensitivity before whitening. A dentist can check whether darkening comes from decay, trauma, medication, or stain.
When should you seek dental care?
Ask which teeth can respond, whether a custom tray is appropriate, and how existing restorations will look after natural teeth are lightened.
What should you ask the dentist?
Home gel
Frequently asked questions
No. A crown is made from restorative material and needs shade planning rather than bleaching.
Why did my gums turn white after gel use?