Retrospective summary analysis on the results of oral health epidemiological investigations in China.

Objective: Comparative analysis of the results of the four national oral health epidemiological investigations conducted in 1983, 1995, 2005 and 2015 respectively, to understand the changes in the oral health status of the Chinese people with economic development, and provide a scientific basis for the country to formulate effective oral health defense measures. Methods: Collect the data of four large-scale oral health epidemiological investigations conducted in the past 40 years, make a retrospective summary and comparative analysis of the list below to understand the changes in Chinese oral health-related indicators such as dental caries and analyze the reason. Results: Since 1995, the preventive counseling rate was increased. Since 1983, the incidence of caries has decreased, but it has increased in children aged 5 and 12 in the last ten years. Four investigations have examined gingivitis and the situation has not improved significantly. Tooth loss was mainly concentrated in the old group, the repair rate of denture was significantly increased. There are significant differences between the gender and urban and rural distribution of oral health. Conclusions: There is an imbalance in the degree of oral health knowledge of Chinese people, and the incidence of caries and periodontal diseases is still relatively high. It is necessary to strengthen hygiene guidance for different age groups, focusing on prevention and combining prevention and treatment to jointly promote oral health.