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Too Much Of Black Tea Could Lead To Dental Problems
“The additional fluoride from drinking two to four cups of tea a day won’t harm anyone; it’s the very heavy tea drinkers who could get in trouble,” said Dr. Gary Whitford, Regents Professor of oral biology in the School of Dentistry. He presented his findings today at the 2010 International Association of Dental Research Conference in Barcelona, Spain.
Most published reports show 1 to 5 milligrams of fluoride per liter of black tea, but a new study shows that number could be as high as 9 milligrams.
Fluoride is known to help prevent dental cavities, but long-term ingestion of excessive amounts could cause bone problems. The average person ingests a very safe amount, 2 to 3 milligrams, daily through fluoridated drinking water, toothpaste and food. It would take ingesting about 20 milligrams a day over 10 or more years before posing a significant risk to bone health.
Whitford discovered that the fluoride concentration in black tea had long been underestimated when he began analyzing data from four patients with advanced skeletal fluorosis, a disease caused by excessive fluoride consumption and characterized by joint and bone pain and damage. While it is extremely rare in the United States, the common link between these four patients was their tea consumption — each person drank 1 to 2 gallons of tea daily for the past 10 to 30 years.
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More News on: Loose Teeth, Sleep Problems in Children, Tooth Decay, Receding Gums, Tooth Discoloration, Teeth Chart, Caffeine and Decaffeination, Dental Check-Up, Root Canal Treatment, Toothache
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