Chandra S, Sharma R, Thergaonkar V P, Chaturvedi S K
Community Dent Oral Epidemiol. 1980 Apr;8(2):92-6. doi: 10.1111/j.1600-0528.1980.tb01264.x.
The present study was made to determine the optimal fluoride concentration in drinking water in a fluorotic zone. The area under study was divided in four parts on the basis of fluorides present in drinking water. A sample of 1320 persons was examinmed, where prevalence of dental fluorosis varied from 3.8% to 65.4% depending on the fluoride concentration in drinking water. Statistically significant increase in the prevalence of dental fluorosis was found (a) with the rise in fluoride in drinking water, (b) with the rise in age, peak being found at 15--19 years age group and (c) amongst the bona fide residents of the area. A significant positive correlation was found between fluoride in drinking water and Community Fluorosis Index. While determining the optimal level of fluoride in drinking water, values obtained were 1.05 parts/10(6), 0.8 parts/10(6) and 0.34 part/10(6), respectively, by different formulae in a fluorotic zone of western Indian.
本研究旨在确定氟病区饮用水中的最佳氟浓度。根据饮用水中氟化物的含量，将研究区域划分为四个部分。对1320人进行了检查，根据饮用水中氟化物浓度的不同，氟斑牙患病率在3.8%至65.4%之间变化。研究发现，（a）随着饮用水中氟化物含量的增加、（b）随着年龄的增长（15 - 19岁年龄组患病率最高）以及（c）在该地区的常住居民中，氟斑牙患病率有统计学意义的显著增加。饮用水中的氟化物与社区氟中毒指数之间存在显著正相关。在确定饮用水中氟化物的最佳水平时，印度西部一个氟病区通过不同公式得出的值分别为1.05 ppm、0.8 ppm和0.34 ppm。 （注：ppm即parts/10(6) ）
