Many people for the choice of toothbrush to hold a kind of indifferent attitude, think no matter what kind of toothbrush, brushing effect is not much difference. In fact, the choice of toothbrush and there is a lot to learn. 1, toothbrush structure toothbrush can be divided into head, handle and neck three parts. (1) toothbrush head: the requirements of wide and narrow suitable, its size should be able to be relatively free and flexible in the oral cavity in the twist, easy to brush to the oral cavity in all areas as a principle. The design of general-purpose toothbrushes is generally categorized into three types: toddler, pediatric and adult. Young children’s toothbrushes are the smallest, brush head length, width and height of no more than 18 millimeters, 9 millimeters, 9 millimeters like a large slender peanut as big. Adult toothbrush is the largest, brush head is generally 30-35 mm long, 10-12 mm, generally 3-4 rows of bristles. (2) toothbrush handle: thick and thin, straight and curved, long and short points, in principle, the shape of the handle as long as easy to use. (3) toothbrush neck: that is, the toothbrush head and toothbrush handle connection parts, some are linear, some to a certain angle. Straight type toothbrush is more powerful, but not conducive to cleaning the teeth deep in the mouth, angle type toothbrush on the back teeth cleaning effect is better, and save energy, its angle is generally 17 ° – 20 ° is appropriate. 2, bristles For the selection of toothbrush bristles can be from the arrangement of bristles, texture, material, structure of four aspects to consider. (1) Arrangement of bristles: the distance between bristle bundles should be moderate, so that it is not only easy to keep the toothbrush itself clean, but also improve the brushing efficiency. And can improve the efficiency of brushing; hair Cambodia too much, too dense, brushing effect, on the contrary, will be greatly reduced. Usually the arrangement of the toothbrush is best 2-4 lines, 6-8 as the best. (2) texture: bristles can be divided into soft, towel pieces, hard = kind of texture. Hard bristles cleaning effect is good, but on the teeth right wear, medium hardness bristles are more suitable for adults, young children generally use the bristles texture softer toothbrush, so as not to teeth and gums damage. You can judge the degree of softness of the bristles by pressing the bristles, if the finger has a prickly feeling, the bristles quickly reset after the finger leaves the bristles said that the bristles are harder, the right bristles come to bend freely, the finger has a sense of plagiarism, the bristles are softer. (3) material: now on the market sales of toothbrushes, on the bristles of the material is divided into natural pig bristle and nylon silk two kinds. Natural hog bristle toothbrush cleaning and adsorption of toothpaste effect is better, only a little longer drying process, nylon silk bristles of the toothbrush on the teeth of the cleaning effect as well as the role of the massage of the Liu dental pals are better, the elastic parts are also better and Dan wear-resistant (4) bristle tip structure: the tip of the bristles should be made into a blunt type, can not be sharp, otherwise it is easy to puncture the teeth meteoric tissue, and the other different clusters of the bristles to the unevenness of the wavy between the best, so that it is better for cleaning teeth In addition, the bristles of different clusters should be uneven and wavy, which is more conducive to cleaning the residual substances between the teeth. 3, according to the age to choose the right toothbrush During the children, the oral cavity is in the growth and development, according to the growth of the child should be selected for the child’s toothbrush, a boat can be based on the age of 2-4 years old, 5-7 years old and more than 8 years of age of the three age stage distinction. (1) 2-4 years old when the baby’s teeth are in the early stages of development, the mouth is also relatively small, and parents often use the bottle to feed the baby, easy to bottle caries. It is recommended that parents choose for them a toothbrush with a narrow brush head that is easy to penetrate deep inside the mouth control, but the grip should be thicker and fatter so that it does not fall off easily when the baby brushes his teeth. (2) 5-6 years of age when the baby’s first permanent teeth (i.e., six age teeth> is about to erupt, at this time, special attention should be paid to the care of permanent teeth before they grow out. Parents are advised to choose a toothbrush with cup-shaped bristles, with soft edges that can completely surround each tooth so that all sides of the teeth can be thoroughly cleaned. Chewing gum can only be a useful supplement to oral health care, not a substitute for brushing. The formation of plaque in the mouth is continuous, and effective brushing 2-3 times a day is more effective for healthy teeth.