What is the direct answer?
Opalescence Go is a prefilled whitening tray; the before-and-after change depends on stain type, enamel, and correct tray use.
What does this question mean?
The product uses a measured peroxide gel held against the teeth by a disposable tray. A before-and-after comparison should use the same lighting and shade reference because photographs can exaggerate or hide colour change.
What can you do next?
A dentist should check for decay, cracked enamel, gum recession, and mismatched restorations before use. Follow the supplied wear instructions, keep gel off the gums, and stop if marked irritation or pain develops.
When should you seek dental care?
Seek an examination for persistent sensitivity, gum burning, uneven colour, or a tooth that stays dark after whitening. A single dark tooth may need assessment for internal discoloration or pulp damage.
What should you ask the dentist?
Ask whether the product suits your enamel, gums, and existing dental work, and how long to wear it. Ask how the dentist will judge the shade and what to do if sensitivity or patchiness appears.
Frequently asked questions
Why are some teeth patchy after whitening?
Patchiness can reflect different enamel thickness, dehydration, old stains, or restorations rather than a failure of the tray.
Should I use a tray on a painful tooth?
No. Pain should be assessed first because whitening does not treat decay, a crack, or inflammation inside the tooth.

