The present invention uses an electric rotating brush on an electric toothbrush to brush your teeth, the drive motor the direction of movement of the brush face and a brush and, at the same time to clean the back side of the tooth at the same time ( ) by having two cylindrical brushes rotating down by the above case of the upper teeth, the lower teeth, the case from the bottom will be wiped clean every corner of the rugged tooth brushing your teeth, as well as reduce the time and on the electric toothbrush to further enhance the ease of brushing your teeth, such as by force of arms is also less costly to move. electric toothbrush of the present invention is the handle that is built driving motor 30 to the battery 31, the interior (20), the teeth of two cylindrical brushes that are spaced apart from each other by a distance corresponding to the thickness (22), the output shaft and the two cylindrical brushes (22) that is configured between the power transmission device of the drive motor 30, and as being coupled to the handle 20, can rotate the two cylindrical brushes (22) at the front end a lower cover installed to (21a) and the front end cover (21c) In the electric toothbrush comprises a cylindrical brush installation opening 21 is formed, the cylindrical brush installation opening 21 is formed in the insertion of the annular end portion of the projection (21b) and the small diameter of the distal end of the handle 20 by a portion 23 formed in the annular insertion groove (23a), which is to be separated from the handle 20, a cylindrical brush installation opening 21 the front end cover (21c) has a cylindrical brush 22, the central axis and is possibly inserted chukhom (21ca) is formed of rotation, toothpaste foam central blocking plate for preventing flowing into the interior (21d) and the power transmission side tube clearance on either side of the axis pass through the device (21e) has been formed The power transmission device is connected to the shaft of the dri
