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作者在广东东部饮水氟浓度为０．１－２．５ｍｇ／Ｌ的天然氟区进行研究，调查了接触氟化物有关的生活习惯和其他影响龋病、氟牙症发生的多种因素，检查了龋病、氟牙症，分别以龋均、龋面均、氟牙症指数作自变量，对多种因素进行逐步回归分析。筛选出影响龋病、氟牙症作用显著的因素，明确表示出各因素的作用大小。对当地制定适宜水氟浓度标准具有指导意义。分析了某些因素的作用未达显著性的原因，并对龋均、龋面均这两个龋病流行病学常用指标进行比较。
The author conducted a study in the natural fluoride zone with a drinking water fluoride concentration of 0.1-2.5mg / L in the eastern part of Guangdong. Various factors related to fluoride-related life habits and other dental caries and dental fluorosis occurrence were investigated. Dental caries, dental fluorosis, respectively, caries were, caries surface, fluorosis index as an independent variable, a number of factors for stepwise regression analysis. Screening out the factors that affect the dental caries, dental fluorosis significant role, clearly shows the size of the role of various factors. It is instructive to formulate the appropriate water fluoride concentration standard locally. The reasons why some factors did not reach significance were analyzed, and the common epidemiological indexes of caries and caries were compared.