新闻报报看 | 一般上，很多人觉得牙齿发黄，可能跟喝太多咖啡、茶，或者长期抽烟有关，但除了这些原因，英国一名牙科专家提醒，人们在刷牙时常常犯2种错误，也是导致牙齿越刷越黄的元凶，来了解一下有没有说中你的刷牙习惯？（主播：蔡心慧、黄宇恒）
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00:00Before watching the video, let me remind you that there is more content on the Hotpot website.
00:30There is a dentist in the UK who reminded us that
00:33the two common mistakes people make when brushing their teeth
00:36are also the cause of the yellowing of your teeth.
00:39Don't worry too much.
00:41This dentist said that it's easy to correct these two mistakes.
00:46First of all, some people don't wet their toothbrush before brushing their teeth.
00:51They apply toothpaste directly to their dry toothbrush
00:54which can remove the stains on their teeth.
00:57The dentist mentioned that the so-called dry brushing method
01:01will actually make your teeth darker or even yellower.
01:05So before brushing your teeth,
01:07it's better to wet your toothbrush first.
01:09This small step can make the toothpaste easier to apply to your teeth
01:13and achieve a better cleaning effect.
01:15Some people may think that after drinking acid drinks,
01:19such as soda,
01:21they should brush their teeth immediately to protect their teeth.
01:24But the answer is exactly the opposite.
01:26The dentist said that the second mistake many people make
01:29is brushing their teeth immediately after eating acid foods or drinking acid drinks.
01:35The dentist explained that acid drinks such as juice,
01:38grape wine, and soda,
01:40or some acid foods such as orange and grapefruit,
01:43will damage the phalanges in the structure of the teeth.
01:46If you brush your teeth immediately when the phalanges weaken,
01:49the yellow layer below will be exposed,
01:52which will make your teeth look yellower.
01:54In order to avoid this situation,
01:56it's better to wait a while after eating acid foods
01:59and brushing your teeth to ensure that the phalanges are strong
02:02in order to keep your teeth healthy.
02:04If you want to keep your breath fresh and your mouth healthy,
02:09it is very important to have a good cleaning habit.
02:12The dentist mentioned that brushing your teeth and gum twice a day,
02:17at least two minutes each time,
02:20can be combined with anti-bacterial mouthwash or toothpaste products
02:24to fight oral bacteria.
02:26The dentist also reminded that you should go to the dentist regularly to check your teeth,
02:30pay attention to dental care,
02:32and don't forget to clean your tongue every day.
02:36As long as you stick to these steps and habits,
02:39you can effectively prevent dental problems
02:41and keep your mouth healthy all the time.