Kids may get excess fluoride from beverages
- From: "Roman Bystrianyk" <rbystrianyk@xxxxxxxxx>
- Date: 13 Mar 2006 15:01:36 -0800
Charnicia Huggins, "Kids may get excess fluoride from beverages",
Reuters UK, March 13, 2006,
Link:
http://today.reuters.co.uk/news/newsArticle.aspx?type=healthNews&storyID=2006-03-13T202852Z_01_COL373665_RTRIDST_0_HEALTH-EXCESS-FLUORIDE-DC.XML&archived=False
While fluoride protects against cavities, some children may be getting
too much of it via fluoridated beverages, and have the telltale white
streaks on their teeth to prove it.
A study of 408 Iowa children found that more than one in three showed
such signs of dental fluorosis. Their fluoride sources included
different types of beverages, such as infant formula and 100 percent
fruit juice.
In light of the findings, parents should "beware of the potential for
the risk of fluorosis," study author Dr. Teresa A. Marshall, an
assistant professor at the University of Iowa's College of Dentistry,
told Reuters Health.
Combining the fluoride in such beverages with the fluoride in
toothpaste, supplements, and other sources may, in some cases, lead to
mild fluorosis, such as that seen in the current study.
"Parents should be educated as to how much toothpaste their children
are using and whether (fluoride) supplements are necessary," Marshall
said.
Marshall, a registered dietitian at the college, and her team conducted
the study to examine associations between dental fluorosis of the
permanent incisor teeth and children's beverage consumption during
infancy and early childhood.
The 10- to 13-year-old participants were followed from birth as part of
the Iowa Fluoride Study. The researchers reviewed parents' three-day
diaries of the children's beverage consumption at 6, 9 and 12 months
and every four months later up to 3 years of age. They also analyzed
the fluoride concentration of well waters and various purchased drinks.
The children had their teeth examined by a dentist when they were 7 to
12 years old.
The findings were presented during the annual meeting of the American
Association of Dental Research.
Overall, nearly 36 percent of the children had white streaks on their
teeth or other signs of mostly mild dental fluorosis. These children
consumed more 100 percent juice at 16 months and less milk at 9 months
than did those without fluorosis, the researchers note.
Children with fluorosis also consumed more fluoride from various
beverage sources, including infant formulas at 6 and 9 months and 100
percent juice at 12, 16, and 20 months than did those without any signs
of fluorosis.
Thus, "fluoride intakes from beverages during infancy and early
childhood contribute to fluorosis of the permanent incisors," the
researchers conclude.
Yet, Marshall stops short of recommending that parents make specific
dietary changes. She instead advises that they follow recommendations
by the American Academy of Pediatrics, including limiting their child's
juice consumption to four ounces daily, and says that adults should
"have (their) water tested for fluoride prior to getting supplements,"
as is recommended by most dental professionals.
"There's not one recommendation that's blanket for everyone because
there's so many different sources of fluoride," Marshall said.
.
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