Juneau , Alaska , may need to rethink their insurance on piss fluoridization after a newspaper put out inBMC unwritten Healthfound that the average act of carie process per youngster under six has jumped from 1.55 to 2.52 per year since the city voted to intercept add fluoride to the water supply in 2007 .
Despite a good deal of grounds to the contrary , some multitude believe fluoridated watercan cause health problemssuch as Crab , osteoporosis , Down syndrome , continuing kidney disease , high blood air pressure , and even lower intelligence . The truth is that skill has repeatedly shown that in low levels ( that is , less than one part per million)fluoride is dead safe – and can even be good from a dental spot of view .
When the city vote on the move in 2007 , experts anticipate a ascent in dental cavity ( or carie ) procedures . Soon after , local dentists anecdotally allege that this was indeed the case . Now , the routine are in and a field examining Medicaid records before and after fluoridation ceased show that there has been a significant surge in the figure of procedures taking lieu , just as predicted .
To test the result of fluoridisation , researchers at the University of Anchorage , Alaska , compared the Medicaid records of under XVIII in 2003 ( pre - fluoride cessation , when there was " optimum " residential district body of water fluoridization ( CWF ) photo ) to those of under 18s in 2012 ( post - fluoride cessation , when there was " sub - optimal " CWF exposure ) . They ascertain a convinced correlational statistics between fluoride surcease and the number of carie operation for all years groups , but this drift was more uttermost among the younger age bracket ( i.e. , tyke under 6 years former ) , most of whom would have never been disclose to fluoridated water .
Based on the records of 853 children in 2003 and 1,905 children in 2012 , overall rates of bodily cavity procedure increased from 2.02 per year in 2003 to 2.35 per year in 2012 . However , there was a climb of almost one procedure per year ( 1.55 versus 2.52 ) among children who were under six years former . The researchers suspect this is because the jr. fry would not have benefit from early exposure to fluoride , like the older small fry .
" By take the fluoride out of the water supply … the deal - off for that is children are run to experience one additional caries procedure per year , at a ballpark ( monetary value ) of $ 300 more per child , " lead author Jennifer Meyer , a public wellness investigator , told local news program outletKTOO .
This is not the first study to unite fluoridated water to good dental health , although studies specifically examining CWF discontinuation have been small in identification number and have produced mixed results . In fact , the scientific discipline goesback to the 1940swhen American researchers realized there were lower rate of tooth decay in region with by nature higher grade of fluoride in the drinking weewee . This was reconfirm in 2016 , when the most comprehensive study of its sort regain that fluoridation can reduce tooth decline by as much as26 to 44 per centum .
But it ’s not just Juneau turn its back on fluoride . In 2011 , Calgary became the declamatory urban center in the world to take fluoride out of their water supply – and in just five years , researchers observe an almosttwo - fold increasein enclosed space among elementary schooltime children . And only last calendar month , a metropolis in Ontario , Canada , had torus - introduce fluorideto their water supplying after everyone got tooth decay .
