The head of the electric toothbrush is broken.

Change a brush head. An electric toothbrush is a toothbrush that rotates or vibrates rapidly through electric motion. It makes the brush head vibrate at high frequency, instantly decomposes toothpaste into fine foam, and deeply cleans teeth. If the brush head is broken, you can change it. Brush head is a very important part of toothbrush, which is in direct contact with the interior of oral cavity. Generally, they are designed to be round and rectangular, but there are also many new brush heads on the market, such as diamonds, diamonds and so on.