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Information from three cross-sectional, representative oral epidemiological studies in Guangdong Province had been analyzed, including 400 in 1995, 720 in 2005, and 288 in 2015, for an overall total of 1408 individuals. Test choice will be based upon the nationwide Census of Asia published by the National Bureau of Statistics. In this study, every year, the sheer number of missing teeth (MT) while the prevalence of loss of tooth (MT were determined.Basic demographic info