Tooth stain­ing a flu­o­ride side ef­fect

South Western Times - - Point Of View -

Pat­ter­son’s car­toon depict­ing a cou­ple with sparkling white teeth de­part­ing from a drink­ing foun­tain dis­pens­ing flu­o­ri­dated wa­ter (Times, Oct 25) is more hu­mor­ous than in­tended be­cause, in fact, flu­o­ri­dated wa­ter causes stain­ing of teeth, tech­ni­cally known as flu­o­ro­sis.

In 2015, the Cochrane col­lab­o­ra­tion, ac­knowl­edged in­ter­na­tion­ally as the gold stan­dard in the re­view of health sci­ence, pub­lished the re­sults of a sub­stan­tial, high­qual­ity meta study.

This re­view found that for a flu­o­ride level of only 0.7 parts per mil­lion, the in­ci­dence of den­tal flu­o­ro­sis ranged from 12 per cent with flu­o­ro­sis of aes­thetic con­cern to a sub­stan­tial 40 per cent with flu­o­ro­sis of any level.

The Cochrane au­thors also con­cluded; “There is very lit­tle con­tem­po­rary ev­i­dence, meet­ing the re­view’s in­clu­sion cri­te­ria, that has eval­u­ated the ef­fec­tive­ness of wa­ter flu­o­ri­da­tion for the pre­ven­tion of caries.” John Vukovich, Flu­o­ride Free Bun­bury

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