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龋病是一种分布很广的疾病,其发病与甜食和甜饮料及不讲究口腔卫生有关,但亦与饮食中的磷酸盐、钙及痕量物质有很大关系.当饮水中氟离子的含量约1毫克/升时,此种饮用水便有防龋病的效益.在巴布亚-新几内亚,据确定,食物中磷、钛、锰、钼和钒对防龋病是有益的,而铅、铜、锌、铬和硒则是有害的.在英国,据调查,居住在富含钼地区的儿童,龋病较少. 近几年来,英国的地质学家对英格兰和威尔士等地区进行了调查.他们在农田和菜园中取土样,取样深度为10～15厘米;对作物如土豆、小萝卜中的痕量元素进行测试,以了解食物中铅等元素的状况.在取得地方行政及医
Caries is a widely distributed disease, the incidence of sweets and sweet drinks and do not pay attention to oral hygiene, but also with the diet of phosphate, calcium and trace substances have a great relationship when the drinking water fluoride The anti-caries benefits of this potable water are about 1 mg / l and in Papua New Guinea it is determined that phosphorus, titanium, manganese, molybdenum and vanadium in food are good for the prevention of dental caries, whereas lead , Copper, zinc, chromium and selenium are harmful in the UK, according to the survey, children living in areas rich in molybdenum less dental caries in recent years, the British geologists in England and Wales and other regions were They sampled soil samples from farmland and vegetable gardens at depths of 10 to 15 cm and tested trace elements in crops such as potatoes and radishes in order to understand the status of lead and other elements in food. medical