As we all know, brushing is one of the most common ways to protect your teeth, we brush every day, then some of the tips you know how much. 1, toothbrush selection criteria: the overall appearance of a good quality toothbrush: short and narrow brush head, brush handle flat and straight, brush surface flat and flush. Plate toothbrush price and then cheap do not make, some plate toothbrush on the market, that is, the brush head is large and wide, bristles full and dense, hair spacing is very small kind, the general price is relatively cheap. The use of such brushing will inevitably cause certain damage to the teeth and gums, such as wedge-shaped defects in the teeth, gum recession, root exposure, widening of the gap, etc. In addition, the plate toothbrush can not brush the back teeth due to the large head, and over time, the food residue left in the back of the mouth will ferment and rot under the action of bacteria, and subsequently damage the teeth. Because the damage to the teeth is a slow process, and can not immediately see the damage, so some people also think that the large head toothbrush with a saving, save time, but do not know the damage caused by a long time. 2, the measure of good toothpaste: First, the consistency should be appropriate, squeezed from the hose into a strip, both to cover the teeth, and not to splash. Second, the friction is moderate, to have a good tooth cleaning effect, but does not hurt the tooth enamel. Third, the paste is stable, in the storage period does not share paste out of water, not hard, acidity and alkalinity stability. Fourth, the drug toothpaste in the expiration date should maintain the curative effect. Fifth, the paste should be glossy and beautiful, no air bubbles. Sixth, the brushing process with appropriate foam, in order to make food debris suspended easy to be eliminated. Seventh, the fragrance and taste should be appropriate. 3, the requirements of the toothbrush bristles: good surface finish; coarse and fine, fine is easy to deformation, coarse is easy to damage the teeth and gums, and bad elasticity; head of the grinding surface is rounded and smooth. 4, the correct method of brushing: we should not only develop good brushing habits, but also pay attention to the method of brushing. If the brushing method is not right, it can also cause abuses, the most common damage is tooth surface depletion and gum recession. People’s ability to brush their teeth well depends largely on the dexterity of their hands. Although there are dexterity and clumsiness in each person’s brushing gestures, the average person can effectively use a toothbrush to clean the mouth if given adequate induction. Children are slower and lack the patience to cope with complex brushing techniques and should be taught to use simpler brushing methods. As for people with disabilities, they may need a toothbrush with a modified handle design for easy gripping or an electric toothbrush.