Brushing teeth after having meal cause teeth cavities?

Many people often brush their teeth more than the recommended number of times a day, especially after a meal. However, American dentists warn that brushing your teeth immediately after eating makes your teeth perish. Why?

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Experts say that after using acidic drinks such as carbonated drinks, beer, wine, fruit juices . acids will erode the enamel and the lower layer of enamel is dentin . Besides, improper brushing, especially within 20 minutes after eating, can cause acid to penetrate deeper into the teeth, causing teeth to erode faster than usual.

In the experiment, the team asked volunteers to wear dentin from human teeth and brush their teeth in different modes. As a result, teeth eroded faster in volunteers who brushed their teeth within 20 minutes after eating with acidic drinks."That means protecting the tooth surface for at least 30 minutes after eating is a good thing to do before brushing your teeth," the researchers concluded.