Abstract
Although electric, ultrasonic and acoustic toothbrushes are now becoming available in shops, the effects and functions of those toothbrushes are not fully understood and consumer information is limited. Therefore, in order to improve the efficiency of plaque control, we examined and compared the characters, functions and effects of one hand toothbrush, two types of electric toothbrushes, one ultrasonic toothbrush and three types of acoustic toothbrushes.
As a result, it showed that each type of toothbrush has its own characteristic features which affects its degree of efficiency in removing plaque. This shows that the training in the use of acoustic toothbrushes is needed, as well as the training with hand toothbrushes.
