At present, there are a wide variety of toothpaste on the market, there is a wide range of domestic, there are also imported three effects of protection, there are also whitening prices from a few dollars to tens of dollars ranging from consumers have a greater choice of space, but also face powder many selection difficulties. In the supermarket, you may often encounter a similar situation, the shelves before stopping for a long time, indecisive do not know how to choose; so many toothpaste really do not know which good to choose. Look at the advertising media propaganda are said to contain fluoride is good, so buy with the atmosphere of toothpaste but a while ago, and said that fluoride is harmful to the human body really let people do not know what to do so, every time you buy toothpaste to compare half a day, but helplessly finally or just buy a random on the go. Some people also ask their friends and colleagues around them which toothpaste they have used to get better results, so they buy it to try. Others think that most toothpastes are similar in effect, so they mostly give priority to price. So how to choose the right toothpaste according to your dental condition? In this article, we will learn about the characteristics of toothpaste and solve your difficulties in purchasing. Toothpaste ingredients What are the ingredients of toothpaste? Generally speaking, the main ingredients of common toothpaste are rubbing agent, cleaning agent, wetting agent, adhesive, and aromatic agent. These are the basic ingredients that any toothpaste must have. Rubbing agent is the main component of toothpaste, accounting for about 1/4 to 1/2 of the paste, and the food residue in the mouth and the calcium phosphate on the tooth surface can be removed by rubbing agent, thus playing the role of decontamination, polishing and cleaning teeth. Therefore, the quality of the rubbing agent is the main basis for judging the quality of toothpaste. Rough rubbing agent will have a lot of wear and tear on the teeth, and the use of fine high-grade silicon as a material will reduce the wear and tear on the tooth enamel. Cleaner is a surfactant. It can penetrate and loosen the deposits on the tooth surface, soften the scale, and also produce foam to facilitate the removal of dirt when brushing, thus playing a soap-like role in toothpaste. Currently, sodium dodecyl sulfate fatty acid sodium, etc. is mostly used. Wetting agents can keep the teeth normally moist and shiny. Glycerin, sorbitol and propylene glycol are commonly used. Adhesive is a kind of gel, used to stick and stabilize the paste, so that it maintains a certain form neither flowing nor very hard. Aromatic agent is a fragrance that makes people feel fresh in the mouth, and the aromatic agent added by different brands is different, so consumers can choose according to their own preferences. In addition to these ingredients, there are also stabilizers, preservatives and sweeteners in toothpaste. It is because toothpaste contains so many chemically synthesized ingredients that you must rinse your mouth thoroughly with water after brushing your teeth. In order to enhance the role of toothpaste in certain aspects, toothpaste in the market are added with some pharmaceutical ingredients or micro and elements. The common ones are fluoride toothpaste and medicated toothpaste. Fluoride toothpaste Fluoride toothpaste is the most common on the market today. It accounts for about 80-90%. It is based on the ordinary toothpaste with fluoride added. The protective effect of fluoride on teeth has been recognized by the medical profession. So how exactly does it protect? The main component of both tooth enamel and dentin is hydroxyapatite. The presence of fluoride converts hydroxyapatite into the more acid-resistant fluorapatite. Fluorine can also promote the formation and growth of hydroxyapatite crystals to improve its thermodynamic stability, thus promoting the mineralization and remineralization of tooth surface to repair or rebuild the early caries. In addition, fluoride can inhibit the fermentation of carbohydrates by plaque bacteria, thus reducing the production of acid. Nowadays, the fluoride added is mostly sodium monofluorophosphate, sodium fluoride, etc. Some research results show that the effect of fluoride toothpaste on caries prevention varies according to the formula of fluoride concentration and the way of use. However, if too much fluoride is absorbed, it will cause fluorosis, deformation of teeth, softening of tooth enamel and loss of luster, which will also lead to osteoporosis and easy fracture. The Belgian government has banned the use of fluoride toothpaste in our country has caused a lot of shock. For this reason, the Chinese Dental Association issued a notice saying that the World Health Organization and other international organizations have been recommending the use of fluoride toothpaste to prevent dental caries, and the application of qualified fluoride toothpaste is safe and effective, not a “double-edged sword”, and does not require a doctor’s prescription, and can be purchased by consumers at will. Although we already know that fluoride toothpaste can prevent tooth decay, but we do not know more about whether fluoride plus calcium or double fluoride plus calcium toothpaste is better to prevent tooth decay. Relevant experts wrote an article to point out that the calcium mentioned here is not added into the fluoride toothpaste. It is the calcium in the fluoride toothpaste with calcium rubbing agent. Theoretically, the fluoride in fluoride toothpaste and the calcium phosphate in the rubbing agent can form a good mineralization system, which is more effective than single fluoride in repairing the early decay of tooth surface in time. This has been proven in laboratory studies. Therefore, some fluoride toothpastes’ recommended instructions emphasize that fluoride plus calcium or double fluoride plus calcium toothpaste is better for caries prevention. However, most of the available clinical studies can only show that the caries prevention effect of fluoride plus calcium or double fluoride plus calcium toothpaste is the same as that of fluoride toothpaste. From the viewpoint of evidence-based medicine, there is not enough clinical trial data so far to show that fluoride and calcium toothpaste has better caries prevention and dental health effect. In addition, when using fluoride toothpaste, consumers should pay attention to rinse the mouth with water thoroughly after brushing to remove toothpaste residue, and not to swallow toothpaste and mouthwash into the abdomen. Do not use fluoride toothpaste in areas with high fluoride levels and heavy industrial areas to avoid poisoning. It is also recommended that toothpaste manufacturers indicate on the outer packaging of toothpaste that fluoride is toxic and should not be left behind after brushing, so that people can take precautions. Medicated toothpaste Like fluoride toothpaste, medicated toothpaste is also made with a small amount of chemical inhibitors, bactericides or herbs. There are many kinds of medicated toothpaste, from the effect, it can be divided into prevention of dental caries, desensitization and analgesia, anti-inflammation and hemostasis, removal of dental calculus and rust, etc. Generally speaking, the medicated toothpaste contains tannin, which can be used to prevent dental caries. Generally speaking, toothpaste containing tannin, strontium chloride or sodium nitrate can reduce the permeability of dentin and prevent sensory conduction, so that the symptoms of toothache can be relieved or disappeared; toothpaste containing zinc citrate, zinc citrate stays in the gum sulcus after brushing and then gradually releases zinc ions to prevent the formation of dental calculus, inhibit the adhesion of pigments such as tobacco and tea spots on the tooth surface; toothpaste containing peroxide can It makes the tartar less likely to form on the surface and helps to remove tartar, increasing the effect of teeth whitening. There are also toothpastes containing desensitizing ingredients that can play a role in dentin allergy. Although drug toothpaste has a certain role in the treatment of periodontal tissue and oral diseases, but consumers must be clear about the cause of the disease and choose the appropriate toothpaste for their situation. Experts remind consumers should not choose and long-term use of drug toothpaste. Because the drug toothpaste generally has a strong irritation, can cause damage to the oral cavity diamond membrane. Some drug toothpaste contains a strong active stain, with a long time will contaminate the tooth surface. The same drug toothpaste used for too long, will also make bacteria resistance to affect the effectiveness of treatment. Moreover, medicated toothpaste is not effective for all dental diseases. It is also important to note that the drugs in toothpaste may lose their effectiveness due to chemical changes over time. In Japan, there are two types of toothpaste: general toothpaste and medicated toothpaste. General toothpaste is a cosmetic product, and its raw materials, specifications and ingredients must be tested and certified. Pharmaceutical toothpaste is a topical drug, and in addition to the same tests as ordinary toothpaste, it is necessary to obtain certification of its functions, usage, dosage and experimental methods, especially those with hemostatic and desensitizing effects, and to obtain certification from the Central Pharmaceutical Affairs Council’s Dental Drug Investigation Committee. In our country, toothpaste is a general household product rather than a drug, and there is no necessary control over whether toothpaste has curative effects or not. When consumers choose toothpaste, they are often unaware of the drug ingredients contained in toothpaste and do not know much about its effects and precautions for use, making it easy for teeth to be damaged by inappropriate drugs. Experts point out that the choice of inappropriate drug toothpaste not only can not inhibit or kill oral pathogenic bacteria, but also can kill the beneficial resident bacteria in the oral cavity, causing chronic stimulation of the oral micro-ecological environment, so that the pathogenic bacteria produce drug resistance. Therefore, when choosing toothpaste, consumers should first understand the performance of various toothpastes, do not blindly believe in the product description, it is best to consult with a stomatologist, and choose the drug toothpaste suitable for their own situation. Children’s toothpaste is the key protection object to prevent tooth decay. Therefore, toothpaste is especially important for children. There are various toothpastes for children on the market, and manufacturers have taken various measures to attract children’s attention. However, consumers should pay attention to the following points when choosing toothpaste for children: 1, children under 3 years old should not use fluoride toothpaste. When using fluoride toothpaste for preschoolers, control the amount and use “the size of a soybean” each time. Because young children have poor self-control, they are prone to accidental swallowing. It is reported that as long as a one-year-old child brushes his teeth twice a day, the fluoride contained in the toothpaste they unconsciously swallow is enough to meet the daily fluoride needs of children in non-fluorideficient areas, plus the daily intake of fluoride from the diet will be a latent risk of dental fluorosis, so children should not use adult toothpaste, and to control the dosage. 2.Toothpaste containing mint additive is not easy for children to accept, so it is not suitable. 3, some children’s toothpaste has fruit flavor, about 1/4 of the children directly swallowed toothpaste. Therefore, parents should pay attention to education and prevention. Finally, we need to remind consumers that the main role of toothpaste is to remove food residues in the mouth and keep the mouth clean. Therefore, toothpaste is only an oral health care products, if you have dental disease to timely treatment, can not rely on toothpaste. Toothpaste is not the more expensive the better, its price is related to the price of ingredients, but the essence is the same. The important thing is to choose the right toothpaste for your situation. In addition, you should change the brand of toothpaste regularly, about once a month to avoid resistance and reduce the bactericidal and antibacterial effect of toothpaste.