Common sense topic (healthy life)

An old proverb, "Healthy Eating": Whether you eat to live or live to eat, eating is an important part of life. How can we eat happily and nutritionally? How to eat healthily? Food is the source of nutrition, and the body needs nutrition to maintain health and promote physiological functions. In order to maintain normal physiological activities, the human body needs seven kinds of nutrients, including protein, fat, carbohydrates, vitamins, minerals, water and fiber, among which protein, fat and carbohydrates are particularly important, which are called the three major nutrients of the human body. The most correct is the pyramid diet; Europe, the United States, Australia, Canada and many other countries use the diet pyramid to promote diet, that is, it is divided into four layers, each layer contains different types and different weights, which is proportional to the area distribution of the pyramid: the fourth layer: oil, salt, sugar and so on. Should eat the least. The third layer: fish, meat, dairy products and beans should be in moderation. Second floor: Vegetables and fruits are the secondary proportion. Bottom layer: mainly cereals, including porridge, noodles, noodles, rice and cereals. Food is the fuel source of human body, and proper diet is helpful to develop human potential. To have a healthy body, let's enjoy the pyramid diet together, and really eat nutritious food and live healthy teeth: a white and neat tooth will make people more confident and smile more brightly in social occasions. Even if the teeth are naturally arranged irregularly, or the teeth turn yellow due to food and drugs, it is not difficult to have white and neat teeth with today's advanced beauty technology. What time? This Thursday (September 20th) is International Tooth Love Day. It's time to learn about the popular tooth beauty technology and listen to the experts' methods to protect teeth. Text: Ling Jiehui Some photo authors: Chu, Xinhua News Agency, Central News Agency, Sing Tao photo library and hospital consultant dentist Feng said that in recent years, dental beauty has become more and more popular, and many people will try different whitening products in order to add more charm to their social circles. He pointed out that if the yellowing of teeth is caused by external pigments, such as smoking, drinking coffee, red wine and fruit acid pigments, teeth can generally be washed? Wash it off However, if the pigment in the teeth is influenced by the outside world during the tooth formation period, such as taking tetracycline and other drugs or drinking water with excessive fluorine content as a child, it is necessary to improve the color by bleaching the teeth or filling the teeth. Beware of the side effects of blue light The popular blue light tooth bleaching technology in recent years is to use the special wavelength of blue light to irradiate the tooth surface with tooth bleaching liquid, thus increasing the efficacy of tooth bleaching liquid and shortening the tooth bleaching time. Dr. Feng said that most potions used to bleach teeth contain molecular oxygen, and the pigment is lightened by the principle of oxidation. Blue light bleaching has a remarkable effect, which can last for one to two years, but it also has many side effects. Dr. Feng pointed out that after receiving treatment, teeth will become sensitive and prone to paralysis. "This problem may be temporary, depending on the individual's dental health. If the dentin is thin, paralysis will be more serious. In addition, it will also affect the health of gums. If the drug is placed in an incorrect position and touches the gums, it may cause inflammation of the gums. " If the drug touches the tongue, mouth or throat, it will cause "sore throat" in a small case and inflammation in a serious case. Dr. Feng also pointed out that blue light bleaching of teeth is not suitable for everyone, depending on the depth of pigment. For example, teeth affected by tetracycline, even if bleached by blue light, will still have uneven pigments, and the effect is limited. In addition, people suffering from tooth decay, exposed feet or periodontal disease must treat their teeth before they can be bleached by blue light. Therefore, he suggested that consumers must do it in a professionally recognized dentist's office before accepting floating teeth. Dentists should first evaluate whether it is suitable for treatment and adjust the concentration of liquid medicine according to the dental condition. Household bleach has limited effect. In addition to whitening teeth in the dentist's office, many people will choose whitening products sold in the market, such as whitening cream, whitening powder, whitening toothpaste and so on. It's confusing. What's the effect? Dr. Feng pointed out that the concentration of whitening teeth products sold in the market is not high, which is generally three times lower than that used by dentists, so the effect is poor. In addition, because the user may not have the patience to use it continuously according to the product instructions, and the drug is mixed with saliva, the efficacy will be diluted, and it is difficult to achieve the whitening effect expected by consumers. As for whitening or going? Toothpaste, on the other hand, relies on coarse particles in toothpaste to clean teeth, and long-term use may cause damage to the surface of teeth. Dr. Feng said that consumers should not buy whitening products indiscriminately, and should clearly understand the advantages and disadvantages of products before using them. As for the influence of tetracycline, teeth appear in a room, and bleaching technology is of limited help. Dr. Feng believes that patients can consider filling their teeth to improve. The method is to use it under ultraviolet light? The synthetic resin (porcelain powder) hardened by radiation adheres to the surface of teeth with specific parts to fill the defective and eroded parts, which has the advantage of not causing damage to teeth. In addition, custom-made porcelain braces is also one of the methods, but the disadvantage is that the teeth must be destroyed first, and the price is more expensive. 1. Dr. Feng said that yellow teeth are not a disease, and whether whitening is needed depends on personal preference. 2. Sticking porcelain powder on the surface of teeth or wearing braces can improve the problem of tooth defect. 3. Before whitening teeth with blue light, be sure to check the health of teeth and treat them. 4. The popular blue light whitening technology in recent years has a remarkable whitening effect. Besides coffee and tea, red wine is also one of the culprits that make teeth yellow. 6. The concentration of whitening paste is low, and saliva dilution will also affect the effect. 7. Uneven tooth arrangement can be improved by hoop technology. 8. Traditional metals? The outer hoop method is more economical and faster. 9. invisible braces is beautiful, but expensive.