Are the electric ones better than ordinary manual brushes?
Whether or not electric toothbrushes clean teeth better than manual toothbrushes depends on the way the head moves. Rotation oscillation brushes that move in one direction and then the other remove plaque a bit better than ordinary toothbrushes. Brushing teeth is an effective way to prevent tooth decay (dental caries or cavities), if fluoride toothpaste is used. Fluoride strengthens the tooth against decay. You can read more about fluoride here. Toothbrushing removes plaque. Plaque builds up at the edges of the gums in particular. Many experts suggest that the bacteria growing in plaque can cause cavities and gingivitis (gum inflammation). The signs of gum inflammation are bleeding, although this usually does not have serious consequences. Sometimes, though, this inflammation can lead to a gum infection that goes down into the bones under the teeth. This condition is called periodontitis. That stage of the disease can cause teeth to loosen and fall out. It is open to question whether o
