The importance of choosing an electric brush
Claims have been made that electric brushes are more effective than manual ones as they are less dependent upon a user’s personal brushing technique.
The research concludes that the way brushing is done, including the amount of time spent, is more important than the choice of brush. After three months of use, to observe the decrease in plaque, gingivitis is reduced by 11% by 21%. The effectiveness of an electric brush depends not only on its type of action and on correct use, but also on the condition of the brush head. Most manufacturer’s recommend that heads be changed every three to six months at minimum, or as soon as the brush head has visibly deteriorated.
Modern electric brushes run on low voltage, 12v or less. A few units use a step-down transformer to power the brush, but most use a battery, usually but not always rechargeable and non-replaceable, fitted inside the handle, which is hermetically sealed to prevent water damage. Many modern electric brushes have a timer which buzzes, or briefly interrupts power, typically after two minutes, and sometimes every 30 seconds. Some of the most well-known are Sensitive, Daily care, Whitening and Tongue cleaning.