Koreans' teeth at risk amid Dubai-style dessert ‘Dujjonku’ craze
Dental experts have warned that sweet and sticky foods such as the viral “Dubai jjondeuk cookie,” or Dujjonku, can be harmful to oral health. According to the medical community Jan. 23, cavities occur when bacteria in the mouth break down sugar in food and release acid, which erodes the surface of teeth. The higher a food’s sugar content, the more acid the bacteria produce, and the stickier the food, the longer residues cling to teeth, increasing the time teeth are exposed to acid. Food debris left on teeth continuously supplies nutrients to cavity-causing bacteria, accelerating tooth decay and contributing to tartar buildup. Lim Hyun-chang, a professor of periodontology at Kyung Hee University Dental Hospital, said some ingredients in the “Dubai jjondeuk cookie” can remain for long periods in narrow gaps between teeth or along the gum line, adding that this can lead to gum inflammation. For those unwilling to give up the popular treat, proper brushing is essential. Brushing is generally recommended within two to three minutes after eating. In particular, after consuming foods
Jan 24, 2026By Hankookilbo