The correct method of rinsing mouth includes the following points: 1.Rinsing mouth directly: If you do not brush your teeth directly after meal, you can contain the mouthwash in your mouth, bite down on the back teeth, use the movement of the muscles on both sides to make the mouthwash pass through the teeth, last 2-3min, rinse thoroughly to remove the food soft scale attached to the tooth surface and finally spit out, repeat 2-3 times to enhance the cleaning effect. 2.Rinsing mouth after brushing teeth: If you use toothbrush first After removing a large amount of food residue on the tooth surface, you can hold the mouthwash in your mouth to make the liquid wrapped around the tooth surface, decompose the bacteria in the mouth and the food fiber in the adjacent space of the teeth, and reduce the occurrence of caries by controlling the number of bacteria. 3.After rinsing: you can combine toothpicks, dental floss, tooth flosser, etc. to further clean the mouth.