Crest 3d white professional effects instructions
Use whitening strips only as directed because peroxide can cause sensitivity and gum irritation.
The short answer
Whitening strips use a peroxide gel held against the enamel for a specified contact time; follow the product instructions rather than extending the wear time. They lighten some tooth stains, but they do not whiten fillings, crowns, or veneers.
What is the direct answer?
What does this question mean?
The peroxide diffuses through enamel and dentine and breaks down coloured molecules. Results and sensitivity depend on peroxide concentration, contact time, enamel condition, exposed root surfaces, and the original stain.
What can you do next?
Check the strip fits the teeth, keep gel off the gums, and stop if significant irritation or sharp sensitivity develops. A dental examination should come first when there is decay, cracked enamel, gum recession, or uncertain staining.
When should you seek dental care?
Seek dental care for persistent sensitivity, gum burns, uneven colour, pain, or darkening in one tooth. A dentist should assess untreated decay, restorations, pregnancy, and other factors before recommending whitening.
What should you ask the dentist?
Ask what caused the staining, whether your restorations will change colour, which regimen suits your enamel, and how to manage sensitivity.
Frequently asked questions
Could this have more than one cause?
The peroxide diffuses through enamel and dentine and breaks down coloured molecules. Results and sensitivity depend on peroxide concentration, contact time, enamel condition, exposed root surfaces, and the original stain.
What is the first practical step?
Check the strip fits the teeth, keep gel off the gums, and stop if significant irritation or sharp sensitivity develops. A dental examination should come first when there is decay, cracked enamel, gum recession, or uncertain staining.