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What Is the Point of Waiting 30 Minutes After Eating to Brush?


Posted on 7/24/2017 by Dr. Leite
Anthony Leite Dentistry can help answer your oral care questions.
The rules have changed over the years, as they often do. You used to be told to brush three times per day to make sure your teeth are clean. Then research showed that brushing too frequently can wear away the enamel on your teeth. Now you are supposed to brush twice a day and floss at least once a day. You used to think that you should brush your teeth immediately after eating to be sure you get the food particles off as quickly as possible. Well, new research indicates that this is no longer the preferred protocol.

What Happens If You Brush Too Quickly?


First, to understand the results of the research you must understand what happens to your teeth when you eat. Let's use the example of fizzy drinks. Fizzy drinks are high in acidic content. When you drink the fizzy drink, the acid from the drink gets on your teeth. The acid then burns into your enamel which is the outer protective layer of your teeth. It also eats into the dentin, the layer below the enamel that the enamel is protecting.

When you brush your teeth, if the acid is still on them, the toothbrush can drive the acid deeper into your teeth. This corrodes them faster than if you had left it alone and not brushed at all. The corrosion would still happen, but not as quickly.

Current research shows that there is a time interval that should be maintained between when you drink that fizzy drink and when you brush your teeth. After testing various intervals of time, the researchers concluded that you should wait at least 30 minutes after eating or drinking fizzy drinks before you brush your teeth. If you have any questions, or if you would like to learn more, please call us today at (415) 877-3128.


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Anthony Leite Dentistry, 650 E Blithedale Ave., #A,, Mill Valley, CA, 94941 - Related Phrases: dental Mill Valley CA / Preventative Dentistry Mill Valley CA / dentist Mill Valley CA / (415) 877-3128 / www.leitedds.com / 8/19/2017