To mark the 38th National Teeth-care Day, Professor Hu Wenjie, vice dean of the Peking University School and Hospital of Stomatology, addresses common oral care misconceptions. He explains why sugar-free drinks can still cause acid erosion, why asymptomatic teeth may still need dental care, and how proper brushing technique and early prevention are key to lifelong oral health.

Supervisor: Zhang Jingwen

Producer: Yang Sha

Directors: Wang Yuxin, Chen Hongyu, Zhang Yuying

Video Editor: Zhong Xia

Copy Editors: Qin Xiaohu, Wang Dewei, Moosa Abbas, Xu Wen, Shanaaz Prince, Zhao Ying

Cover Image Designers: Yu Peng, Zhu Shangfan, Li Yueyun