Quick question: What’s best for your smile after eating sweets?
You’ve finished treating yourself to a Snickers bar and feel the coating of sugar and chocolate nestling onto your teeth. As your digestive system does its thing, so does the plaque in your mouth. After all, candy is one of the worst foods for your teeth; eating it can promote the production of acid that causes tooth decay, according to the American Dental Association (ADA).
So you grab your toothbrush and scrub away the caramely evidence. Problem solved, right?
Oops. Turns out, your brilliant plan to brush away your afternoon sweet treat may have made it worse. Brushing your teeth after eating a cavity-inducing food sounds great in theory, but it’s actually a mistake—and here’s why.
Sugary or acidic foods have a lingering effect on your tooth’s enamel for about 20 minutes, according to Jennifer Jablow, DDS, dentist in New York City. “Your enamel actually becomes softer,” says Dr. Jablow. “The mechanical brushing of the teeth can actually wear the teeth more.”
Foods that Soften Tooth Enamel
Your teeth are covered with a hard, calcified tissue called enamel, according to ADA. This protective layer is actually stronger than the bones in your body, but it’s not invincible.
One enemy of your enamel is certain foods—namely, sugary, acidic, and citrusy foods. These are the enamel-softening foods to look out for, according to Dr. Jablow and the ADA:
Desserts and sweet snacks
Carbonated sugary beverages
These foods cause tooth erosion that can lead to temperature sensitivity, staining, cavities, and even tooth loss, according to the ADA.
What to Do After Eating Enamel-Softening Foods
“It’s very important when you have something with sugar [or] acid that you have to wait 20 minutes before you brush your teeth,” says Dr. Jablow.
In that 20-minute time frame, drink water to flush away bacteria from your mouth naturally. If you have a sink nearby, you can even swish around a little water like mouthwash to rinse out your teeth. You can also use a water flosser, if you’re lucky enough to own one at home.
“It’s also very important, after those 20 minutes have gone by, that you’re brushing your teeth and removing any debris that could be left behind on the surface of the teeth,” says Dr. Jablow.
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So it's very important when you have
something with sugar or you have something
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with acid that you have to wait 20
minutes before you brush your teeth.
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Cuz, believe it or not, for 20 minutes
your enamel actually becomes softer.
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And if you brush your teeth within that 20
minutes of having something really acidic
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or really sugary,
your teeth are softened and
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the mechanical brushing of
the teeth can wear the teeth more.
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Acidic food and drink are citrus foods,
lemons, balsamic vinegars.
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Carbonated beverages, carbonated
sugary sodas are absolutely the worst.
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Because you have the acid, and
a very high acid of a pH of about 2,
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and then you also have the double
sword of the sugar as well.
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But it is also very important after
those 20 minutes have gone by that you
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are brushing your teeth and
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removing any debris that can be left
behind on the surface of the teeth.
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Erosion: what you eat and drink can impact teeth. Chicago, IL: American Dental Association (Accessed on June 6, 2018 at https://www.mouthhealthy.org/en/az-topics/e/dietary-acids-and-your-teeth.)
Tooth. Chicago, IL: American Dental Association (Accessed on June 6, 2018 at https://www.mouthhealthy.org/en/az-topics/t/tooth.)