As an essential part of human organs，the health of teeth is significant. Since the Ming and Qing Dynasties，dental problems have been discussed in detail in medical theories，but ordinary people’s attention to teeth in daily practice has not been satisfactory. In the second half of the 19th century，Western dentistry was introduced into China，and modern dental knowledge，which was different from the past，gradually came into people’s vision. Under the dual promotion of society and the state，the means of disseminating modern dental knowledge have been constantly enriched，and the range of it has expanded. Through the mass media， lectures and exhibitions，school education，and national propaganda，modern dental knowledge has been further disseminated，reminding the public to care for their dental health and reshaping health concepts. At the same time，modern dental knowledge has been gradually constructed into a comprehensive discourse of science，health，capital，and politics.