With traditional handbrushes, a person can make an average of 200 to 300 brushing strokes per minute, and the angle and pressure of these strokes depend entirely on the individual’s hand skill; often, incorrect pressure application leads to abrasion of the tooth necks. Modern “Sonic Toothbrushes,” on the other hand, produce approximately 30,000 to 40,000 vibrations per minute. This enormous biomechanical speed not only removes plaque by the bristles touching the tooth, but also, by rippling saliva and water in the mouth at high speed (hydrodynamic effect), dislodges bacterial plaque even in the narrow interdental spaces that brush bristles cannot physically reach. Clinical studies show that sonic brushes remove up to 70% more interdental plaque than handbrushes and improve gum health much faster in individuals with poor hand coordination.
