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Natural Paste or Fluoride
Research and experts warn that natural toothpastes do not necessarily protect against tooth decay unless they contain fluoride. A UK survey of 500 products from 95 brands found that around a third were fluoride-free, while a Cochrane review of 96 studies confirmed the effectiveness of fluoride toothpastes. Dentists recommend a concentration of at least 1,350 parts per million for adults and children over seven, and brushing twice a day for two minutes, then spitting out the toothpaste without rinsing with water straight away. You can choose a toothpaste that combines natural ingredients with fluoride, but evidence does not show that herbal ingredients can replace it; charcoal toothpastes may also scratch tooth enamel.
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