Crest whitestrips levels
Whitening strip levels usually distinguish formulas or treatment intensity, so active ingredients, contact time, and directions matter most.
The short answer
Strips hold peroxide gel against the front surfaces of teeth. Versions may vary in peroxide content, strip shape, contact time, or schedule.
What is the direct answer?
What does this question mean?
Read the exact directions, use strips only on intact teeth and healthy gums, and stop for marked sensitivity or soft-tissue irritation.
What can you do next?
See a dentist with cavities, enamel defects, gum recession, restorations, or a single dark tooth.
When should you seek dental care?
Ask which active ingredient and concentration the product contains and whether restorations will change color.
Frequently asked questions
Can this have more than one cause?
Yes. Similar symptoms can arise from different dental tissues, so an examination separates them.
What should I avoid?
Avoid caustic home remedies and stop any product that causes marked pain or soft-tissue irritation.