Arvin Erik, Bardow Allan, Spliid Henrik
DTU Environment, Technical University of Denmark, Kgs. Lyngby, Denmark E-mail:
Dental School of Copenhagen, University of Copenhagen, Copenhagen, Denmark.
J Water Health. 2018 Feb;16(1):49-56. doi: 10.2166/wh.2017.139.
Water quality and socioeconomics influence caries in populations. This study broadens previous studies on how caries is associated with fluoride and calcium in drinking water and with family income by quantifying the combined effect of the three independent variables. The effects of calcium and fluoride can be described as independent effects of the two ions or, alternatively, in the form of saturation with respect to fluorite (CaF). A general linear model describes this relationship with high significance and the model confirms the important protective effect of calcium and fluoride, independently against caries. From the model, the relative importance of fluoride and calcium to protect against caries is quantified. The relationship between caries and family income is also highly significant. It is illustrated how the linear model can be applied in planning and analyzing drinking water softening in relation to caries.
水质和社会经济状况会影响人群的龋齿情况。本研究通过量化三个独立变量的综合效应，拓展了以往关于龋齿与饮用水中氟化物和钙以及家庭收入之间关联的研究。钙和氟化物的作用可以描述为这两种离子的独立作用，或者以相对于萤石（CaF₂）的饱和度形式来描述。一个通用线性模型以高度显著性描述了这种关系，并且该模型证实了钙和氟化物对预防龋齿各自具有重要的保护作用。通过该模型，可以量化氟化物和钙对预防龋齿的相对重要性。龋齿与家庭收入之间的关系也具有高度显著性。文中说明了线性模型如何应用于规划和分析与龋齿相关的饮用水软化问题。
