AUTOMATIC LIQUID-SPRAYING ELECTRIC TOOTHBRUSH, COPPER-FREE BRISTLE IMPLANTATION METHOD, AND CONTROL METHOD

The present invention provides an automatic liquid-spraying electric toothbrush, a copper-free bristle implantation method, and a control method, and belongs to the technical field of oral cavity cleaning devices. The automatic liquid-spraying electric toothbrush of the embodiments of the present invention comprises a handle part, a toothbrush head, a liquid pump assembly, a sound wave motor, an electric control plate, and a sealing structure. The liquid pump assembly, the sound wave motor, and the sealing structure are all arranged in the handle part. A first end of a hollow shaft of the sound wave motor extends out of the handle part, and the toothbrush head is sleeved on the first end portion of the hollow shaft and communicated with the hollow shaft, such that a liquid for cleaning teeth is sprayed out by means of the toothbrush head. The sealing structure comprises a first sealing member. A liquid outlet of the liquid pump assembly is in sealed connection to a second end of the hollow shaft by means of t