Nowadays, there is a wide variety of toothpastes on the market, both domestic and imported, with prices ranging from a few dollars to hundreds of dollars. Various brands of toothpaste are promoting their perfect efficacy, such as protecting teeth, cleaning mouth, eliminating odor; some can be anti-inflammatory and anti-bacterial, treating bleeding gums; some can whiten teeth, treating fluorosis and tetracycline teeth; some can even prevent and treat colds, and some can grow hair. In the face of how many toothpaste brands, some are indeed of excellent quality and trustworthy, while others are false propaganda carried out by manufacturers for profit purposes. How to choose the right toothpaste for you really requires a certain understanding of toothpaste. The main ingredients of toothpaste are abrasives, cleansers, wetting agents, adhesives and aromatics. Abrasive is the main ingredient, which plays the role of stain removal and polishing; cleaning agent can penetrate and loosen the deposits on the tooth surface, emulsify the soft scale and play a role similar to soap; wetting agent makes the toothpaste not easy to dry out; adhesive is to stabilize the paste and avoid moisture; aromatic agent can make the brusher feel fresh and comfortable in the mouth and reduce odor. Ordinary toothpaste contains all the above ingredients to achieve the function of cleaning teeth and is suitable for all people to use. In order to enhance the role of toothpaste in certain aspects, many current toothpastes have added some pharmaceutical ingredients. The common ones are as follows: 1. Fluoride toothpaste: Fluoride toothpaste is very common in the market, it is based on the ordinary toothpaste with the addition of fluoride ingredients. At present, it has been confirmed that fluoride containing you has a clear effect of preventing dental caries. Therefore, the application of fluoride toothpaste has been fully affirmed by the dentistry community. Many fluoride toothpastes also have calcium added to promote remineralization of demineralized tooth surfaces. Some fluoride toothpastes also have added pharmaceutical ingredients that can have a synergistic effect when used in combination. Fluoride toothpaste has the function of enhancing the anti-cavity function of teeth, and most people can apply fluoride toothpaste, especially teenagers who are at the easy stage of caries. However, for people in high fluoride areas, fluoride toothpaste should not be used in general to avoid excessive fluoride intake. For children who are too young, it is better not to use fluoride toothpaste and other medicated toothpaste in order to prevent swallowing toothpaste while brushing teeth and causing excessive intake of fluorine. 2, Chinese herbal toothpaste: It is based on ordinary toothpaste added to a certain cause of herbs, such as two-faced, Tian Qi, Scutellaria and other drugs with anti-inflammatory and hemostatic effects, hoping to have a certain auxiliary effect on relieving the inflammation of the gums. 3, anti-inflammatory drug toothpaste: in the ordinary toothpaste based on the addition of certain antibacterial drugs, such as chlorhexidine toothpaste, Kang Deng Ning toothpaste. These drugs generally have anti-inflammatory and antibacterial effects. 4, anti-allergy toothpaste: add desensitizing ingredients in toothpaste, allergy to dentin can play a certain role in alleviating. 5, tartar whitening toothpaste: this type of toothpaste contains drugs such as peroxide or hydroxyapatite to help remove tartar and increase the effect of white teeth. In addition, there are children’s toothpaste designed specifically for children, which mainly changes in the color, taste and fragrance of toothpaste to increase children’s interest in brushing. Moreover, every effort is made in the packaging to attract children’s attention as much as possible.