Counting down now, many people use electric toothbrushes to keep the pearl white beautiful and bright. But are they really better? Yes, dentists say they overwhelmingly recommend that they are the best means to keep their teeth clean and free from plaque and its destructive effects. However, the purchase of electric toothbrushes alone does not guarantee good results. You will also need to make sure that you brush at least twice a day and spend at least two minutes each time brushing your teeth and using the correct brushing technique ( Yes, there is a technology). Do a little research before you rush out to buy an electric toothbrush. First of all, electric toothbrushes are different from batteries. The electric toothbrush is similar to a manual toothbrush, but uses an AA battery to vibrate the bristles slightly, providing some extra cleaning. The real electric toothbrush is a rechargeable device plugged into the wall. Change the brush head every three to six months and keep the handle, the handle will receive a fee. The head has different shapes and sizes and works differently. They may vibrate, rotate, or use sound technology [source: Oral B]. Electric toothbrushes also feature a variety of functions such as special patterns for sensitive teeth, gum massage and whitening. Some have pressure sensors that let you know if you brush your teeth too hard, or have a digital reminder to replace the brush head. Most packages have additional features like toothbrush holder and travel charger [source: Oral B]. In the eyes of many people, the main disadvantage of electric toothbrushes is the cost; The starter kit is generally $50 to $75, but you can buy some for less than $25 or more than $100. However, in the long run, they may not be much more expensive than manual brushes because they need to be replaced at a much lower frequency [ Ask Alice, spoken B. . Still not sure? Continue reading the five benefits of electric vehicles.