It's safe to brush and floss your teeth after using whitening strips. It won't reduce the whitening effects of the treatment. Manufacturers recommend doing so gently. This will help you avoid gum irritation and discomfort.
We recommend that with any form of whitening that teeth are brushed beforehand. This is to ensure that any plaque (this sticky surface layer on your teeth) is removed and that any whitening agent present in the strips or gel gets the closest contact with the teeth.
If you see spots or excess gel on your teeth after removing the whitening strips, you can brush immediately after removing the strips. Doing so won't harm your teeth.
Answer: Teeth Whitening at home
If you have sensitive teeth, it may be best to do the bleaching at night, take some ibuprofen, and sleep so you can miss the sensitivity phase. Please make sure your at home kit is dentist approved.
After applying the white strips, ensure that you avoid certain foods and beverages for a certain period of time. Coffee, wine, and other flavored/colored beverages should be avoided for at least a couple of hours after applying.
CAN I WEAR THE WHITESTRIPS LONGER THAN THE INSTRUCTED WEAR TIME? We recommend following Crest's usage instructions for each product. Longer wear time may result in increased tooth sensitivity and/or gum discomfort.
Whitening strips usually start to make a difference within just 3-4 days. Only you'll want to keep wearing them to continue the improvement, even out the whitening overall, and get the brightest end results.
Also, if you have poor oral health or an underlying medical condition that affects the teeth, the teeth whitening procedure may make the teeth yellow. This is because the dentin has a yellowish hue under the enamel. So, when the enamel thins, your teeth become translucent and may look yellow.
Teeth whitening strips should be applied to the teeth on a daily basis. Do not skip a day!
Wait at least 30 minutes after brushing your teeth to apply White Strips. They'll stick better if your teeth aren't glossy and smooth after a brush. If you need to brush beforehand to remove food particles, use a wet toothbrush with no toothpaste or use a fluoride-free toothpaste.
Keeping whitening strips or bleaching gel in contact with your teeth for too long can burn your gums or cause your teeth to become very sensitive. It is possible to over-whiten your teeth, which can cause discoloring.
Per the Crest website for their “3D White 1-Hour Express Whitestrips”: “Usage: Apply once a day for 1 hour. Full results in 7 days.”