Actor Ki Tae-young revealed his personal tooth-brushing routine.

On the 29th, a video titled "The return of zero cavities! Gum health! Tooth care methods" was posted on the YouTube channel "Yujin VS Tae-young."

That day Ki Tae-young prepared a second installment of tooth care methods. He said, "Back then I used what was brought, and actually the toothbrushes I use are like these. Not all of them here — some are used up and some are not used," and he revealed the grooming items filling his drawer.

Yujin admired, "I've always been someone who had a lot of things in my life, and while many of this household's items are basically mine, that is really 100% my brother's equity."

Getting serious, Ki Tae-young said, "There is a children's version of this and an adult version," and first introduced the adult version. Beside him Yujin laughed, "I'm so bored, what should I do? I'll have to do something else."

Ki Tae-young held a dental model and explained the correct tooth-brushing method. He said to stand the toothbrush up and clean the innermost surface first, then push up to clean the remaining inner surfaces, explaining, "You have to remove between the tooth and the gum like a toothpick."

After finishing the inside, it was time for the outside. Ki Tae-young demonstrated earnestly that you should also lift from the gum on the outside. He then emphasized the importance of the toothbrush, saying, "The bristles should move as a whole from the root, and while being soft they should retain this springiness. Because everything needs to be cleaned, these bristles are very important," stressing the use of a dual fine-bristle toothbrush.

[Photo] "Yujin VS Tae-young"

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