Closed full-dentition ultrasonic electric toothbrush

The invention discloses a closed full-dentition ultrasonic electric toothbrush which comprises a lower tooth socket and an upper tooth socket, the lower tooth socket and the upper tooth socket are both crescent tooth sockets; a first groove for embedding teeth is formed in the lower portion of the lower tooth socket, an annular groove is formed in the upper portion of the lower tooth socket, the rear end of the annular groove is hinged to the upper tooth socket, a round rod is arranged at the rear end of the lower tooth socket, the ultrasonic transduction module and the power source are arranged in the middle of the round rod, and a square plate is arranged in the middle of the lower tooth socket. Soft bristles are arranged at the upper end and the lower end of the square plate in an array manner; a first round hole is formed in the lower end of the square groove, and an LED cold light source is detachably connected into the first round hole. A second groove for embedding teeth is formed in the upper portion