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Chinese Journal of Dental Research
Chin J Dent Res 21 (2018), No. 3     15. Oct. 2018
Chin J Dent Res 21 (2018), No. 3  (15.10.2018)

Page 161-165, doi:10.3290/j.cjdr.a41079, PubMed:30255167


The 4th National Oral Health Survey in the Mainland of China: Background and Methodology
Lu, Hai Xia / Tao, Dan Ying / Lo, Edward Chin Man / Li, Rui / Wang, Xing / Tai, Bao Jun / Hu, De Yu / Lin, Huan Cai / Wang, Bo / Si, Yan / Wang, Chun Xiao / Zheng, Shu Guo / Liu, Xue Nan / Rong, Wen Sheng / Wang, Wei Jian / Feng, Xi Ping
Oral disease patterns change over time and it is important to conduct epidemiological surveillance population surveys regularly to monitor the situation. The overall objectives of the present survey were: (1) to describe the oral health status of Chinese children and adults in the 2015-2016 4th National Oral Health Survey; (2) to investigate the oral health knowledge, attitudes, and behaviours among children and adults; (3) to explore the association among sociodemographic characteristics, oral health behaviours, and the oral health status of Chinese children and adults. A national oral health survey was conducted among a representative sample of Chinese children and adults. Local residents from the five age groups - 3 to 5 years, 12 to 15 years, 35 to 44 years, 55 to 64 years, and 65 to 74 years - were selected. A multi-stage cluster sampling method was adopted for the identification of participants. All 31 provinces, autonomous regions and municipalities of the mainland of China were included. All participants were clinically examined and information on their oral health status, including oral mucosal lesions, dental caries experience, periodontal health status, dental fluorosis, and dental prosthesis status, was collected according to the procedures and criteria recommended by the World Health Organization (WHO). A calibration training programme and quality control procedures were conducted to ensure the reliability of the findings. Information on sociodemographic background, oral health behaviours, knowledge and attitude was also collected from all five age groups through a questionnaire survey.

Keywords: China, epidemiology, methodology, the 4th National Oral Health Survey