Colgate optic white professional in office kit
A professional whitening kit uses peroxide under controlled instructions, but a dentist should check gums, fillings, and sensitivity first.
The short answer
A professional in-office whitening kit uses a peroxide gel applied under controlled clinical instructions, and suitability depends on the teeth and gums being treated.
What is the direct answer?
What does this question mean?
Whitening gels contain carbamide peroxide or hydrogen peroxide, which oxidizes some colored molecules within enamel and dentine. The product name alone does not show whether a kit is intended for a dentist-supervised appointment or home use.
What can you do next?
Before whitening, have the dentist examine decay, leaking fillings, gum inflammation, cracks, and existing sensitivity. The clinician protects soft tissues, applies the selected gel for specified intervals, removes it, and checks the result.
When should you seek dental care?
Stop and contact the dental team if gel causes severe burning, persistent pain, marked gum irritation, or unusual tooth sensitivity. Whitening does not treat decay, gum disease, or discoloration inside a dead tooth.
What should you ask the dentist?
Ask which peroxide formulation and application method are planned, whether your restorations will change color, and how sensitivity will be managed. Confirm the product is being used according to its clinical instructions.
Frequently asked questions
Can this kit whiten a crown?
No. Whitening changes natural tooth structure, while a crown keeps its manufactured shade.
Why do teeth feel sensitive after whitening?
Peroxide can temporarily affect fluid movement in dentine tubules, stimulating the pulp and causing sensitivity.