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Scientists say we our teeth the wrong way. Researchers from University College, London that most of the advice that dentists us is very different. They that we have been our teeth the wrong way. The researchers at tooth-brushing advice in dental textbooks, toothpaste instructions and dental clinics. They five different basic ways of tooth-brushing and all of them were incorrect. Most of the methods moving the toothbrush along the teeth, with the brush moving round and round in small circular movements. The researchers said we should stop doing this and a back-and-forth movement instead.

Aubrey Sheilam, lead author of the study and professor of dental public health, : "The public to have sound information on the best method to their teeth." The research not brushing teeth too much. More than twice a day the enamel on the teeth. The recommended time for brushing is no longer than three minutes each time. The research also says too much pressure and brushing your teeth too hard will also damage teeth. Researchers also not cleaning your teeth immediately after . This is when acid is strongest in your mouth and this acid will teeth. A final recommendation was to clean the tongue too because it also a lot of bacteria.