This is necessary. My friend is 26 years old and has just had braces for two months. Although his teeth are still slowly correcting, the process is very long, but he feels that his mood has changed. There is a crack in the middle of her front teeth, and she doesn't dare to laugh at ordinary times. She has been thinking about straightening her teeth. After wearing braces, I feel that I am not only sewing, but also restoring the bones of the entire upper incisors. I don't know, my mouth may have been a little protruding before, but now I'm slowly going down, with a pointed chin and a good nose. This morning, I was surprised to find a small pear vortex in the corner of my left eye. The effect is quite good. It may take me a long time to bring invisible braces, a year and a half. During the whole process, the teeth will loosen more obviously than usual, which is a change that must occur in order to move the teeth, but professional doctors will control the strength to ensure that the degree of loosening will not cause harm to the teeth. Once the teeth are moved to the target position, they will not loosen again after a period of stability. From now on, you will have a neat and stable tooth. Come on, it is estimated that self-confidence has improved n times!