Classification of traditional toothbrush forms

There are many misunderstandings in purchasing oral health products, one of which is that the choice of toothpaste is more important than toothbrush. Some people think that good dental education can prevent all dental diseases. In fact, among the three elements of brushing teeth (toothbrush, brushing method and toothpaste), toothpaste can play its greatest role only if the first two conditions are met. Moreover, mechanical brushing is more effective than toothpaste in removing soft dirt and dental plaque and preventing dental caries and periodontal disease. Toothbrush is the first line of defense to protect teeth and remove dental plaque. Many people use inferior toothbrushes for a long time, which not only can't be cleaned, but also hurts gums and teeth. So when choosing a toothbrush, you should choose a good healthy toothbrush for yourself. So, what are the characteristics of a healthy toothbrush? The characteristics of the health toothbrush determined by the Ministry of Health in China are: the width of the toothbrush head is suitable to meet the actual needs of twisting and washing in different regions; The toothbrush handle is straight and easy to hold, so that it has enough strength to brush off the dirt on the tooth surface and massage the dental caries; The height of each group of toothbrush bristles is equal to meet the needs of brushing teeth on three sides, and sometimes it can be seen in the market that the height of bristles is an arc with a concave middle, which is not in line with the actual situation of brushing teeth; The interval distance of each group of hairs is appropriate, which is convenient to keep the toothbrush clean; Wool into columns in each group to prevent dental caries caused by stab wounds or abrasions; The tips of bristles should be machined and ground into a round shape to avoid wearing teeth. In addition to the popular health care toothbrush, with the development of science and technology, toothbrushes with special functions have been designed at home and abroad since 1980s. Mainly includes the following categories. (1) Electric toothbrushes are often used for mentally retarded children who can't take care of themselves or people with hand dysfunction who need help brushing their teeth. (2) V-shaped toothbrush In order to be suitable for patients wearing fixed appliances to brush their teeth, the bristles of the toothbrush are designed to be V-shaped or U-shaped, so that the bristles straddle both sides of the bracket and the steel wire. The bristles at the bottom of the V-shape are short and hard, which can effectively remove dental plaque on brackets and steel wires. The bristles on both sides of the V-shaped bottom are long and soft, which are used to clean teeth and massage decayed tissues. (3) New toothbrush France has designed a musical toothbrush, which will make a pleasant musical sound when the correct brushing method is adopted; Once it becomes a horizontal brush method, the music stops; This will help children develop the good habit of brushing their teeth correctly. Japan has introduced a semiconductor toothbrush, in which a semiconductor element with photoelectron effect is installed in the handle. When brushing your teeth, the heteroconductor element will release electrons and remove tartar. China has also developed an ionized toothbrush, which can release both anionic fluorine and cationic calcium when brushing teeth with DC power supply as needed.

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