Jackson R D, Kelly S A, Katz B P, Hull J R, Stookey G K
Oral Health Research Institute, Indianapolis, IN 46202-2876, USA.
J Public Health Dent. 1995 Spring;55(2):79-84. doi: 10.1111/j.1752-7325.1995.tb02336.x.
This study investigated the prevalence of dental fluorosis and caries in 7-14-year-old children residing in communities with negligible (NF: 0.2 ppm), optimal (OPF: 1.0 ppm), and four-times optimal (4X OPF: 4.0 ppm) naturally occurring fluoride in their water systems.
Examinations were performed on 344 children who were lifetime residents of their communities.
Whether using the tooth surface index of fluorosis or Dean's index, children examined in the 4X OPF community had the highest prevalence of dental fluorosis. While the severity of fluorosis seen in the OPF and NF communities was mild in appearance, the results indicate that fluorosis does occur in optimally and negligibly fluoridated communities. Compared to the NF community, DMFT and DMFS scores in the OPF community were 9.2 percent and 21.2 percent lower, respectively.
The ingestion of water containing 1 ppm or less fluoride during the time of tooth development may result in dental fluorosis, albeit in its milder forms. However, in these times of numerous products containing fluoride being available, children ingesting water containing 1 ppm fluoride continue to derive caries protection compared to children ingesting water with negligible amounts of fluoride. Thus, the potential for developing a relatively minor unesthetic condition must be weighed against the potential for reducing dental disease.
本研究调查了居住在水系统中天然氟含量可忽略不计（NF：0.2 ppm）、适宜（OPF：1.0 ppm）和四倍适宜（4X OPF：4.0 ppm）的社区中7至14岁儿童的氟斑牙和龋齿患病率。
对344名一直居住在其社区的儿童进行了检查。
无论使用氟斑牙表面指数还是迪恩指数，在4X OPF社区接受检查的儿童氟斑牙患病率最高。虽然在OPF和NF社区中观察到的氟斑牙严重程度外观上较轻，但结果表明在氟含量适宜和可忽略不计的社区中确实会出现氟斑牙。与NF社区相比，OPF社区的DMFT和DMFS得分分别低9.2%和21.2%。
在牙齿发育期间摄入含氟量为1 ppm或更低的水可能会导致氟斑牙，尽管其形式较为轻微。然而，在如今有众多含氟产品的情况下，与摄入含氟量可忽略不计的水的儿童相比，摄入含氟量为1 ppm水的儿童仍然能获得防龋保护。因此，必须在发展相对轻微的不美观状况的可能性与减少牙齿疾病的可能性之间进行权衡。
