Is the 3-3-3 Brushing Rule Always Best? The Surprising Truth Behind Its Origins

Have you ever heard of the 3-3-3 brushing rule: brush three times a day, within three minutes after a meal, and for at least three minutes?

Surprisingly, it turns out that this 3-3-3 brushing rule lacks any medical basis.

The 3-3-3 rule originated as an oral hygiene campaign slogan in Japan in the 1950s.

While health authorities in Japan have long since phased it out, it is still used in public service announcements and schools in South Korea.

Experts say that properly brushing all of your teeth actually requires about 10 to 15 minutes, rather than just 3 minutes.

Especially in the summer, brushing your teeth immediately after drinking carbonated beverages or ades can actually wear away the weakened surfaces of your teeth.

It is safer to rinse your mouth with plain water first and wait about 30 minutes before brushing.

If you are short on time, experts recommend skipping the front teeth and thoroughly brushing the chewing surfaces of the molars and the gum line, along with using dental floss.
※ Please note: This article was translated by AI and may contain errors.