What is the 333 rule in Korea?
The brushing method recommended to general persons in Korea is the 3-3-3 brushing method campaign, which involves only toothbrushing behavior (the time and frequency); 3-3-3 means brushing one’s teeth 3 times per day, within 3 minutes after having a meal, for at least 3 minutes each time. Koreans are taught from an early age that brushing their teeth within 30 minutes after eating is key to good dental health. This habit is deeply ingrained in their daily lives. Fresh Breath = Good Manners! In Korea, cleanliness is an important aspect of etiquette.