Abstract: A mouthpiece type of electric toothbrush is disclosed. The mouthpiece type of electric toothbrush includes: a toothbrush head that includes a mouthpiece-shaped housing which is provided with upper and lower openings and a blocked intermediate portion, wherein a plurality of first silicone protrusions may be arranged to be spaced apart from each other by a predetermined interval along an inner wall surface of the housing in the upper and lower openings; and a main body that is detachable from the toothbrush head and transmits a vibration to the toothbrush head. The toothbrush head may further include a water-containing pad and an air layer provided at a lower portion of a silicone layer thereof, thus it is possible to easily spread toothpaste through the water-containing pad and to correspond to a size of a user's mouth or oral cavity by adjusting an air amount of the air layer.

Abstract: A mouthpiece type of electric toothbrush is disclosed. The mouthpiece type of electric toothbrush includes: a toothbrush head that includes a mouthpiece-shaped housing which is provided with upper and lower openings and a blocked intermediate portion, wherein a plurality of first silicone protrusions may be arranged to be spaced apart from each other by a predetermined interval along an inner wall surface of the housing in the upper and lower openings; and a main body that is detachable from the toothbrush head and transmits a vibration to the toothbrush head. The toothbrush head may further include a water-containing pad and an air layer provided at a lower portion of a silicone layer thereof, thus it is possible to easily spread toothpaste through the water-containing pad and to correspond to a size of a user's mouth or oral cavity by adjusting an air amount of the air layer.