If we pay more attention, it is not difficult to find that there are various toothbrushes on the market, whether in price, or in the sample, size, I believe we will be overwhelmed, and, if we choose a good toothbrush, its effect will be far greater than the role of toothpaste. So, how can we choose the best one, the most suitable for our own toothbrush? First of all, a good toothbrush head should be round and blunt at the front. That is, the length of the toothbrush head should be 2.5-3.2 cm, the width of 0.8-1 cm, there are 2-4 rows of bristles, each row of 5-12 bundles of bristles, the front of the toothbrush head should be rounded and blunt. The market those brush head square, triangular toothbrush is best not to buy. Second, a good toothbrush each group of toothbrush bristles to be equal height. Nowadays, toothbrushes with curved bristles on both sides and shorter bristles in the central area are more common, but studies have shown that such toothbrushes do not have much ability to remove plaque. Therefore, it is recommended to choose a toothbrush with equal height bristles. Also, multiple tufts of bristles are better. Toothbrush bristles are usually arranged in bundles of 3-4 rows, and multiple bundles of bristles are more beneficial to improve cleaning efficiency. The spherical tip of the bristles avoids gum rubbing caused by flat cut ends. Finally, to choose a good toothbrush, the key also depends on the hardness of the bristles, when choosing a toothbrush, use your finger to press the bristles, such as fingers have a tingling sensation is too hard, should not be used. General brush handle and the angle of the brush head to 17 ° -20 ° is appropriate. The above is only the best toothbrush for ordinary people, and for special people such as periodontal patients can choose interdental toothbrushes and gum massage toothbrushes, people with limited mobility of hands and feet, you can choose electric toothbrushes. For some whitening toothbrushes on the market, they may be effective in removing tooth surface pigment, but they may also harm the hard tissues of the teeth and gums, so it is better to be careful when using them.