Tooth cleaning device

The tooth cleaning device comprises a cleaning brush, the cleaning brush comprises a U-shaped brush head and a handle, the U-shaped brush head comprises a middle plate and two side plates, the middle plate is fixedly connected with the handle, bristles are evenly arranged on the inner sides of the side plates, and a plurality of cleaning rods are evenly arranged on the inner side of the middle plate. And the width of the side plate in the direction of the handle is not more than 2cm. The cleaning rod is fixedly connected with the middle plate and comprises a metal rod and an elastic friction head connected with the metal rod, the metal rod is a two-stage telescopic rod, a spring is arranged in the metal rod, and the elastic friction head is in a bullet shape. The elastic friction head is made of food-grade silica gel materials. When the toothbrush needs to be used, the handle is held by a hand, the U-shaped brush head extends into an oral cavity, the U-shaped cover covers premolars or molars, dirt on the prem