Know the right way to brush your teeth. Usually we brush our teeth horizontally and vertically, not knowing that this will damage our teeth in the long run and some things are not easy to remove. A more scientific method is to brush the upper teeth from top to bottom and the lower teeth from bottom to top, which can effectively clean the various food residues in the teeth. Then brush the toothbrush and teeth vertically a few times, by the way, the tip of the tongue also brush. And try to avoid brushing the gums to prevent hurting them. Brush the innermost teeth on both sides of the mouth as well. Choose the right toothbrush. Currently there are toothbrushes with soft, medium and hard bristles. Each of them has its own advantages and disadvantages, and we should choose wisely according to the condition of our teeth. For the sake of protecting the tooth surface, I recommend using a soft bristle brush, which is less damaging to the tooth surface. Brushing should be done from a very young age, and so should your baby teeth! Make it a good habit to brush your teeth in the morning and evening, and rinse your mouth after eating!