You asked, we answered. So here you have them — the answers to all of your burning questions about teeth whitening toothpaste — backed by science.
Whitening toothpaste works to remove surface stains from teeth, and may do so better than regular toothpaste, as it sometimes has abrasives like baking soda or silica. Some whitening toothpastes contain chemical agents like hydrogen peroxide that also help remove surface stains. However, there is no evidence that these toothpastes affect stains under the surface.
Leaving whitening toothpaste on your teeth after you are done brushing does not work to whiten them any further. There are other overnight whitening solutions for this purpose that you can use. You can also try a product like Crest Whitening Emulsions, which is a gel that you spread on your teeth and leave on.
Crest teeth whitening toothpaste works to remove surface stains with the addition of abrasives, and some toothpastes also contain hydrogen peroxide for further whitening effects.
Colgate teeth whitening toothpaste works to whiten teeth by removing surface stains with abrasives and also with the addition of hydrogen peroxide, a chemical whitening agent.
Whitening toothpaste does clean teeth because you scrub away plaque and food debris, however, for best results, you should use a whitening toothpaste that contains fluoride. You can also use a whitening toothpaste in addition to your regular fluoride toothpaste.
Normal toothpaste will help to remove surface stains from teeth. It may not have the same effect as whitening toothpaste, because whitening toothpaste contains added abrasives.
Teeth whitening foam toothpaste can work to whiten teeth by removing surface stains, especially if it contains abrasives like baking soda or silica, and hydrogen peroxide.
Whitening toothpaste can hurt your teeth if you have weakened enamel. If it contains hydrogen peroxide, the chemical can get past your enamel and to your dentin, irritating your nerves.
Whitening toothpaste can make your teeth yellow over time by making your enamel thinner. The dentin underneath is yellow, so the thinner your enamel becomes, the more visible the yellow dentin.
Whitening toothpaste only works to remove surface stains, so if your stains are below the surface, you won't see any changes. For this you will need a stronger whitening treatment.
Whitening toothpaste can work for anywhere from a few days to a few months. The results only affect the surface of your teeth, and are minimal compared to professional treatment.
Whitening toothpaste works immediately to scrub away surface stains. If it contains a chemical whitening ingredient like hydrogen peroxide, you may notice stronger results after a few days of use.
Whitening toothpaste works to whiten teeth because it contains abrasives that scrub away stains on the surface of your teeth, and sometimes chemical whitening agents. Toothpaste will only whiten the surfaces of your teeth, so any changes will likely be minimal.
Make teeth whitening toothpaste at home by mixing 2 teaspoons of 1.5% hydrogen peroxide with 1 teaspoon of baking soda and making a paste, and gently brushing your teeth.
Whitening toothpaste is safe if you follow the instructions for use. Some toothpastes aren't meant for everyday use because they are too abrasive, while others are OK. If you aren't sure, you should consult your dentist, or use one approved by the ADA.
Some whitening toothpaste is approved for everyday use, and others aren't. Toothpaste with high levels of abrasives is not safe, as it can damage your enamel. To be sure, choose a toothpaste approved by the ADA, or consult your dentist before use.
Side effects of whitening toothpaste include tooth sensitivity and the potential of weakened enamel with prolonged use of abrasive toothpaste. This can also increase the risk of caries.
Charcoal teeth whitening toothpaste is not safe for daily use — at least that is what most experts agree. It is quite abrasive and thus can damage enamel with repeated use. Some dentists recommend patients who want to use charcoal toothpaste do so once in a while to remove surface stains, and the ADA recommends that dentists warn their patients about potential side effects.
You can use teeth-whitening toothpaste while pregnant although you should take some precautions. Avoid toothpaste with carbamide peroxide, and consult your doctor to be sure.
Yes, whitening toothpaste can cause tooth pain. If you have thin enamel and the toothpaste contains a whitener like hydrogen peroxide, the chemical can irritate the nerves in your dentin.
You shouldn't use whitening toothpaste if it is highly abrasive for more than four weeks, and there are some toothpaste that shouldn't be used daily. Ask your dentist if you are unsure.
Many dentists will recommend a whitening toothpaste if you want a brighter smile. However, they'll most likely tell you that toothpaste won't make much of a difference in the shade of your teeth.
NIH: Bleaching toothpaste with two different concentrations of hydrogen peroxide: A randomized double-blinded clinical trial. Consulted 21st April 2023.
JADA: Charcoal and charcoal-based dentifrices. Consulted 21st April, 2023.
Springer: Effects of charcoal-based whitening toothpastes on human enamel in terms of color, surface roughness, and microhardness: an in vitro study. Consulted 21st April 2023.