The endemic fluorosis is a kind of endemia widely distributed in Ningxia, and this is strongly related to the special natural geochemical environment of Ningxia.
But too much fluoride, especially for children who's adult teeth are still forming can lead to a problem called dental fluorosis when white patches form on teeth.
F与土
岩元素具显著正相关，主要来自于成土母质。
要地氟病是
广泛分布的一种地方病，与
殊的原生地球化学环境有密切关系。
过多的氟化物，
年人的牙齿还
