Even though there are some research data claiming that modern electric toothbrushes can clean better than the manual ones, other reasons such as facility and boosting of motivation are usually the main reasons to advise the use of an electric toothbrush. Most people do not brush their teeth correctly, due to improper brushing technique or not brushing long enough.

If the brusher enjoys brushing better with an electric toothbrush and brushes with it more carefully, more often, or for the proper amount of time because of its use, then it can significantly improve oral hygiene.

Only minimal skill level is needed to brush properly with an electric brush while a manual toothbrush requires manual dexterity and diligence. A good electric toothbrush will probably clean better in those cases where someone lacks the skills needed for manual brushing. For people who for various reasons have problems making the necessary movements of brushing (i.e. people with arthritis and elder people), electric brushes is the only solution.

People tend to brush longer with a power toothbrush, as minimum effort is needed. If a person spends more time brushing with an electric toothbrush, it can lead to better removal of dental plaque .

Many people and especially children prefer a power toothbrush due to the smaller brush head that is easier to reach all areas of their mouth, even to the back teeth without causing discomfort as some larger brush heads.

Less brushing force is required by power toothbrushes to provide effective dental plaque removal than with manual toothbrushes. Normally, power toothbrushes are less likely to cause damage to tooth enamel and gums. Some of the best electric toothbrushes such as the Braun Oral-B or Sonicare range allow you to regulate the brushing time and pressure applied using a built in timer and pressure sensors.

The novelty of a power toothbrush can be a strong motivation to encourage some people to give more importance to their daily dental hygiene (especially those who like gadgets and children

An electric toothbrush is recommended for those who wear braces as it may reach crevices between braces and teeth that are not easily cleaned.