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水中加氟防龋齿 半世纪后仍有反对
http://www.100md.com 2001年7月26日 家庭医生医疗保健网
     路透社纽约健康消息 氟化物是一种天然元素,被用来防止龋齿。无数的研究证明,在水中加氟可以防止龋齿。早在二十世纪三四十年代就已经有研究表明,喝加氟水的儿童得龋齿的几率远比不喝加氟水的儿童低。最近许多美国以外的国家所做的研究也继续显示了相似的结论。

    美国牙科协会(ADA)认为,氟化物可以通过在饮用水、漱口水、牙膏等其他产品直接作用于牙齿,在牙齿的发育过程中起到强化牙齿的作用。即使大量使用含氟的牙膏和漱口水,如果长期饮用无氟水达一年或一年以上,仍然有增加龋齿发病率的可能性。

    然而,美国纽约反氟联盟的成员却认为水中加氟没有必要,甚至还会危害健康。反氟联盟的成员之一,纽约圣劳伦斯大学的保罗·肯尼特博士认为,在饮用水中加氟是对健康和民权的威胁,在没有征得同意的情况下给饮用水掺以药物成份,就公共政策而言,也是对科学的诚实性的极大威胁。

    Fluoridated Water: Some Say It Is Unnecessary

    NEW YORK (Reuters Health) - Countless studies have shown that water fluoridation may prevent tooth decay. However, members of the New York State Coalition Opposed to Fluoridation believe that the practice may be unnecessary or even harmful.

    Water fluoridation is a threat to health, a threat to democracy--in the sense of medication without informed consent--and ``a huge threat to the role of honest science, not corporate science, in public policy,‘‘ said Dr. Paul Connett of St. Lawrence University in Canton, New York. Connett is one of the founding members of the NYS Coalition Opposed to Fluoridation.

    Fluoride, a naturally occurring element, is used to prevent tooth decay. The compound can be ingested through a fluoridated water supply and help strengthen teeth during development, and can be applied directly to teeth via mouth rinses, toothpaste or other products, according to the American Dental Association (ADA).

    Studies conducted as early as the 1930s and the 1940s show that children who drink fluoridated water will have lower tooth decay rates than those who drink nonfluoridated water. Recent studies, including those conducted in countries outside the US, continue to show similar results, according to the ADA.

    The ADA states that ``dental decay can be expected to increase if water fluoridation in a community is discontinued for one year or more, even if topical products such as fluoride toothpaste and fluoride rinses are widely used.‘‘

    However, study results from a team of Canadian and American researchers suggest otherwise, according to the antifluoridation coalition., 百拇医药