Xylose fortune telling

Protect your teeth. I am best at writing compositions.

1. Write a composition to protect your teeth. If you want to protect your teeth, you must first understand the structure of your teeth.

Teeth are the hardest organs in the human body. It has the functions of biting, tearing, grinding food and assisting pronunciation.

There are two pairs of teeth in a person's life: one is a deciduous tooth with 20 teeth, and the upper and lower jaws have 10 teeth. It began to erupt about half a year after birth and came out about two and a half years old. From 7 years old to 12, deciduous teeth fall off one after another. The other pair is permanent teeth, 32 in total, with maxillary and mandibular teeth 16. From the age of 6, the deciduous teeth gradually change, 12 years old, and all the permanent teeth erupt except the third molar.

The third molar usually erupts after the age of 20, also called wisdom tooth. Wisdom teeth will never come out, so 28~32 permanent teeth are normal.

Teeth are divided into three parts: crown, neck and root. The crown is the part we can see, and it is the part where the teeth are exposed outside the gums.

The surface of the crown is covered with a layer of enamel, which is the hardest tissue in the human body, and its hardness is similar to that of the time. The root is embedded in the alveolar process of the upper and lower jaws.

The root surface is covered with a layer of cementum. The neck of the tooth is a slightly thinner part between the crown and the root of the tooth, which wraps the gum.

Teeth are mainly composed of dentin, and the internal cavity is called tooth cavity. The cavity of movable teeth is filled with connective tissue, nerves and blood vessels, which are collectively called dental pulp.

Blood vessels and nerves enter and exit from the apical foramen of teeth. When suffering from dental caries, bacteria corrode enamel and dentin and enter the pulp cavity, which is unbearable.

(See Figure 37) Students should do the following to protect their teeth: 1. Develop a good habit of brushing your teeth. Rinse your mouth with warm water after meals and brush your teeth once in the morning and evening.

Don't brush your teeth too often, it will damage your teeth, and don't brush your teeth for too long. Brush cheese? [ 14]? Returning to Mujiao M: Nuclear Spoon Rebellion Pan Ⅲ? ⑼ ⑼ ⑼ ⑼ ⑼ ⑼ ⑼ ⑼ ⑼ ⑼ ⑼ ⑼ ⑼ ⑼ ⑼ ⑼ ⑼ ⑼ ⑼ ⑼ ⑼ ⑼ ⑼ 2. Pay attention to oral hygiene and protect your teeth.

Eat less candy at ordinary times. Especially don't eat sugar before going to bed to prevent dental caries.

In addition, we should pay attention to the usual hygiene habits, do not bite fingers, do not bite pencils and other foreign bodies, and do not lick your teeth with your tongue. 3. If your teeth are sick, you should seek medical advice in time.

If there are cavities, they should be repaired or pulled out. It is not difficult to achieve the above points, the key is perseverance.

May all students have healthy and beautiful teeth. Good oral health care is not the only way to have healthy and beautiful teeth.

Eating habits also play an important role. Here are some suggestions to help you have a beautiful smile! Your teeth: the main symbol of health and beauty. Teeth enable us to enjoy all kinds of food! Healthy teeth can make us chew hard food, meat, raw food and fruit without scruple ... Good chewing can strengthen the strength of gums and promote saliva secretion. They participate in the digestive process and play a bactericidal role in teeth.

In addition to genetic factors, the color and hardness of our teeth also depend on dental care and eating habits. Keep your teeth healthy: a balanced diet! A balanced diet and proper dietary distribution throughout the day (in order to avoid snacks, four meals a day: breakfast, lunch, dinner and snacks) are very beneficial to strong teeth.

In fact, it helps our teeth to better resist * * *: enamel erosion, dental caries ... Fresh food, such as carrots, carrots or apples, rubs on the surface of teeth when chewing, which actually plays a role in cleaning teeth. In addition, lipids, some protein (casein of cheese), minerals (phosphorus, calcium, fluorine ...) and vitamin D have antibacterial effects, which limit the discharge of inorganic salts in enamel.

On the contrary, snacks, especially those "soft" foods, carbohydrate foods (candy or sweet drinks, bread, cakes, etc. ) or acidic foods (soda, fruit, juice) usually increase the risk of dental caries. Sugar can be converted into acid, which may destroy the enamel on the tooth surface.

If possible, clean your teeth carefully after every meal. If you don't have the conditions, you can also rinse your mouth seriously or chew a piece of sugar-free gum.

In fact, any increase in saliva flow will reduce the risk of dental caries. It should be pointed out that excessive drinking of coffee, tea and smoking may make teeth yellow.

Four dairy products make teeth stronger. They are the best sources of calcium and phosphorus we need, and the main minerals of tooth enamel and root supporting bone. Mineralization of deciduous teeth began in the fourth month of pregnancy, and mineralization of stone teeth began in the first year of birth.

After the teeth are formed, the enamel is renewed and maintained. We should drink milk, and it is better not to drink sweet drinks.

Dairy products (yogurt, etc. ) Also bring calcium, phosphorus and vitamin D, which will increase the absorption of calcium and phosphorus. Finally, the main protein casein in milk can limit the excessive discharge of inorganic salts in enamel.

People in the past did a good job: they usually ate cheese after dessert and reduced the acid secreted by carbohydrates with the help of casein and lipids in milk. Drink more mineral water, which is a natural source of fluorine. Natural mineral water meets the human body's demand for fluorine.

Fluorine can increase the enamel of teeth, strengthen teeth and protect teeth from microbial erosion. Most mineral water contains 0.3 mg of fluorine per liter, but some are as high as 8 mg per liter.

We can also see fluoride on the dining table. For pregnant women and children, there are also tablets made of fluorine (0.5 mg to 1 mg according to age).

Tea, sea fish and some vegetables (spinach, carrots, etc.) also contain fluorine. However, excessive intake of fluoride (more than 2 mg per day) may make teeth black.

Take advantage of chocolate and sugar-free chewing gum. In fact, cocoa contains tannic acid, fluorine and calcium phosphate. All three substances are involved in protecting teeth.

In "sugar-free" chewing gum, sucrose is replaced by sweet polyol, but it will not cause dental caries: xylitol plays a bactericidal role, which is beneficial to reducing dental plaque, and sorbitol (sugar synthesized from glucose or fructose, used as artificial sweet flavoring agent). So a 2.2g sugar-coated chewing gum has only 3.8 calories.

My best composition is about 600 words.

Short hair, round head, a pair of talking eyes and a high nose. Ha ha ha smile, and then show two rows of neat white teeth. This constitutes a cheerful, lively and laughing me-Xu.

Speaking of this name, there is still history! When I was born, my mother asked a blind man to tell my fortune. The blind man said I was short of "gold", so my mother simply gave me three "gold". Well, it's really troublesome to write, but I have to accept my fate.

I have many hobbies, such as dancing, playing harmonica, singing and writing. What I like best is reading. I often use my spare time to read books, which lasts for half an hour! I tell you, reading can not only increase our knowledge, but also improve our intelligence and broaden our horizons.

I like making friends and helping others. Unfortunately, I was born as timid as a mouse, and I really should be a "mouse". I remember one autumn night, I went out to go to the toilet alone. I can't see my fingers outside, and the wind is blowing, which makes me tremble. I wrapped my clothes tightly and continued to walk in the dark. Suddenly, I heard a rustling sound, and I immediately remembered the mythical devil, so I faltered and said, "Devil ... Your Majesty, please forgive me ...! ""Hey, Xiao Xin, what are you doing here? " I looked back, alas, it was dad. I cried and said, "Dad, why didn't you come earlier? It will be miserable if you come late! " Dad smiled and said, "What a coward!" I listened and said angrily, "Who said I was a mouse?" However, I decided to challenge this "mouse"!

Students, you should know me by now! Would you like to make friends with me?

3. Environmental protection My best 600-word composition stood by the river, smelling the stench, watching the struggle and listening to * * *.

Although the sun has risen and brought light to the earth, the lights around me are still on. What happened around us all reflected that people did not pay attention to saving the environment, which made the surrounding environment worse and lost the beautiful scenery of the past.

Just when people realize this and start to save resources, others are still wasting, using disposable chopsticks, washing their hands and cutting down trees, and still turning on the tap ... Without water, fire, trees and soil, we can't survive on the earth. Therefore, we should cherish the dribs and drabs around us and safeguard our homeland.

Water is the source of life and one of the indispensable things for human beings. I believe everyone has heard the saying: If human beings don't cherish water, then the last drop of water on the earth will be human tears.

Yes, we really should cherish water. More than 6,000 cities in China are short of water. It is also difficult to find a drop of water there. We should also cherish water in daily life, such as washing dishes, chopsticks and cooking noodles with rice washing water, which can save domestic water and reduce the pollution of detergents; Use a shower instead of a tub bath, and use a low-flow shower head to avoid taking a long shower. If everyone saves water in this way, it will save 6 billion cubic meters of water a month, which is almost equivalent to the annual water consumption of a medium-sized city.

In addition, when we see the faucet dripping in schools and public toilets, we must tighten the faucet; On the playground, when you see children playing with water, you must stop them. March 22nd is World Water Day. Every year on this day, all countries in the world will publicize that everyone should cherish water resources and protect the water of life.

In fact, it is not only this day, but every day in our life should cherish every drop of water and cherish the water of life with practical actions. Trees can give us fresh air, conserve water and soil, and prevent floods and sandstorms.

Give us a shade from the sun and a big green umbrella. However, in recent years, there are fewer trees and more floods.

What is the reason? It turns out that some people are greedy for money and cut down many trees to make furniture, white paper and disposable chopsticks to make money. However, people not only don't cherish the paper after buying it, but also throw it on the ground at will. In their minds, it is just a trivial piece of paper.

But have they ever thought that white paper is a tree, and throwing away white paper is equivalent to cutting down trees! We should not think that throwing away a pair of disposable chopsticks has nothing to do with a piece of paper. The population of China is over 654.38+300 million. What would the world be like if everyone wanted to do that? No one dares to imagine. Students, refusing to use disposable chopsticks, saving paper and not chopping are our best choices! Next, let's talk about saving electricity.

Electricity, like water, is indispensable to human life. At home, there are many things related to electricity, such as air conditioners, computers, washing machines and refrigerators ... as long as we save these things related to electricity, we can also save a lot.

Below I will tell you some tips for saving electricity. Put the glass cooking pot that has not been poured into the microwave oven, pour a proper amount of water, cover it, put the glass cooking pot with rice and water into the microwave oven, and set the medium-high fire for 7 minutes.

Why is it so simple? Because the power of a general rice cooker is 900 watts, it takes 20 minutes and consumes 0.3 degrees of electricity; The power of microwave oven is 700 watts, which takes 7 minutes and consumes less than 0. 1 kwh. Moreover, the rice cooked by microwave oven has complete particles and moderate overall hardness, while the rice cooked by rice cooker is soft in some places and hard in some places, and often paste.

Cooking in the microwave oven is energy-saving and delicious, killing two birds with one stone. There is another way to save electricity: don't put too much water in the steamer when steaming things. Generally, it is advisable to leave half a bowl of water in the steamer after cooking. This can save water and solar terms to the greatest extent. Why not? Students, let's take action, form a good habit of saving energy and set a good example for people around us! Encourage more people to join the energy-saving team.

Let the ancient earth shine again.

4. I write that I am best at environmental protection, and others praise me that I am best at environmental protection. I love the sunset with 400 words.

When the sun set, I skipped leisurely along the forest path and watched the sunset reflected on the lake, which made me feel very comfortable. A few cute puppies are playing around the weeds and sometimes barking. I hummed a ditty and walked slowly, with happiness on my face.

I took a few steps anxiously, but the sight in front of me stunned me-the crane boomed and slowly rose, and the excavator shoveled left and right. Suddenly the dust was flying all over the sky, so I quickly covered my nose. Suddenly, the dead branches on the tree fell at my feet, which woke me up instantly. I looked up and found that the trees by the stream were gone. The nest in the tree is gone; The happy birds in the nest are gone. I looked at the stream, and the cheerful chat of the bird family came to my mind. A gust of sand blew into my eyes. I rubbed my eyes and looked at everything in sight. The soil mixed with sand and gravel is floating around, and the workers are still busy, covering their noses and talking loudly from time to time.

I remember it was an autumn three or four years ago. It was a harvest season, and the wheat fragrance was mixed in the dust and fog and dispersed in the fields. The sun has set. After the harvest, several piles of golden wheat have been piled in the soil. Everyone is busy. Cattle graze on the grass and enjoy the infinite fun of the countryside. I leaned against the window, listening to the touching songs of birds and smelling the fragrant rice. .

"But are these still there?" I stood by the construction site and thought for a long time.

5. Protect your teeth. Start with everyone!

Xiao He composition network

Toothache is not a disease, it hurts like hell. I have a deep understanding of this sentence, because I have had several dental caries before, and I can't eat any food every time. When I brush my teeth, I bleed and the pain is unbearable. I have to go to the hospital to prescribe medicine, rinse my mouth and fill my teeth, otherwise it will rot the roots and affect my health. Therefore, I understand the importance of protecting oral hygiene. Now, I brush my teeth very carefully every time, and I haven't had dental caries for a long time for no less than three minutes. Xiaohe composition network

A clean mouth is the foundation of health. We must keep our mouth clean every day and try to reduce harmful bacteria in our mouth, because most bacteria in our mouth are harmful to our teeth and health. At the same time, clean oral cavity also reflects the civilized quality and quality of life of a person, a family and a nation. Communicating with people, white teeth, confident smile and fresh breath, oral cleaning is far more important than wearing brand-name clothes. Therefore, we should develop good oral hygiene habits from childhood and establish a civilized and healthy image of China people with our white teeth.

6. Essay on protecting teeth, 500 words, not the fastest. As long as the mouth is an important organ of the body, teeth also affect the appearance, and about 85% to 90% of people in the world suffer from dental diseases, so protect teeth, starting from me.

However, how to protect teeth has become a big problem for people. If the method is improper, it will have serious consequences! Below, I will introduce several ways to protect teeth.

1. A balanced diet and proper dietary distribution (to avoid snacks, four meals a day: breakfast, lunch, dinner and snack time) are very beneficial to strong teeth.

2. Enamel erosion, dental caries ... Fresh food, such as carrots, carrots or apples, actually plays a role in cleaning teeth when chewing.

3. Lipids, some protein (casein of cheese), minerals (phosphorus, calcium, fluorine ...) and vitamin D have antibacterial effects, which limit the discharge of inorganic salts in enamel.

Four kinds of dairy products make teeth stronger: to drink milk, it is best not to drink sweet drinks. Dairy products (yogurt, etc. ) Also bring calcium, phosphorus and vitamin D, which will increase the absorption of calcium and phosphorus. Finally, the main protein casein in milk can limit the excessive discharge of inorganic salts in enamel. People in the past did a good job: they usually ate cheese after dessert and reduced the acid secreted by carbohydrates with the help of casein and lipids in milk.

Of course, it is also important to use tooth protection tools correctly. For example, our most commonly used toothpick, if not used well, will cause gum swelling and pain, so I suggest you floss to solve the problem.

After listening to my introduction, do you know the importance of protecting your teeth All right, protect your teeth, start with me!

7. As the saying goes, "Toothache is not a disease, it hurts like hell." "ouch, ouch, it hurts!" It turned out that there was a black hole on my molar, and I was tossing and turning in bed. Hey, what should I do?

My mother saw it in her eyes and it hurt in her heart, so she took me to the dentist. Let me lie on a big sofa with a shadowless lamp overhead and a tray next to it with a set of medical equipment on it. These things are like monsters with claws, smiling at me with malicious intent. Seeing this, I was nervous and scared, and my legs couldn't help shaking. The doctor came over and said to me gently, "Don't be afraid, little friend. It doesn't hurt at all. Open your mouth wide and let me examine you. " When the recliner rose, my heart was in my throat. The doctor hooked the black tooth with a probe. Ah, it hurts! I shouted. The doctor looked at it again with a small mirror the size of a button and said, "Well, the pulp is inflamed." I felt very nervous when I saw the doctor drilling my teeth with a small electric drill. I think I must open my mouth, but don't drill my tongue! With the vibration of the electric drill, my head buzzed. Ah! It's really hard. Later, the doctor cleaned me up and filled some white things in the little black hole. I look in the mirror, hey! The black hole disappeared, leaving only a patch the size of a soybean, and my tooth didn't hurt so much.

Through this filling, I finally understand the importance of my mother letting me brush my teeth every morning and evening. As the saying goes: "Food is the first thing for the people, and teeth are the first thing to eat." Children are in a critical period of growth and development, and the quality of teeth is directly related to our physical and mental health. Therefore, we should try our best to protect our teeth from bacteria.

How to protect teeth? Protect your teeth from childhood. Below, I will introduce five good dental care habits to you:

1. Brush your teeth in the morning and evening. It is best to use a healthy toothbrush and fluoride toothpaste. Change the toothbrush every three months. Brush your teeth for 5 minutes. Brush the upper teeth downwards, brush the lower teeth upwards, and smooth the lower jaw at least 8- 15 times.

2. Regular oral examination.

3, eat less sweets, sugary drinks, spicy food, etc.

4. After eating or eating snacks, rinse your mouth with warm water or chew sugar-free gum.

5, drink more tea to prevent teething, do not eat hard food to prevent tooth injury, remember partial eclipse, for tooth health.

We should develop good oral hygiene habits from childhood, and establish a civilized and healthy image of China people with our white teeth.

8. I am the best composition. I am the best. I took photos again and again to witness my wonderful moments in the dance competition. How I want to go back there again! But the truth tells me that time is gone forever. It's just a temporary glory, and it can only represent my past. I can't use it to measure the present and the future, let alone the meaning and value of my life. One certificate after another, one medal after another, hung on my chest and held in my hand. At that moment, how glorious I was! But now certificates and medals are stuck in my locker, dreaming a long and endless dream. In this way, who can be more glorious and better than me?

Perhaps, you will think that I am proud, complacent, well-intentioned and gushing about your long speech to me. But have you ever thought that this is just a comfort to life, it's no big deal. It is normal for all people to comfort themselves psychologically. This is also a way to make you confident. Moreover, proper encouragement will turn into motivation for learning and make you feel confident.

I am the best! Although it is a simple sentence, it can sum up all my feelings at the moment.

9. Write a 350-word weekly diary about tooth care. A beautiful smile reveals neat white teeth, which is a sign of health. Many people wish their teeth were as white as jade. Then, in order to make our teeth healthy, we must know our teeth and take care of them. Teeth are the hardest organs in the human body. It has the functions of chewing, helping pronunciation and maintaining facial appearance. People grow teeth twice in their life. The first time they are called "deciduous teeth", they all grow at the age of two, and there are 20 teeth in total. At the age of six, deciduous teeth gradually fell off and "permanent teeth" appeared, totaling 32. If you want to have a pair of healthy teeth, you must pay attention to the health care of your teeth and take care of our teeth. How to protect teeth? Let me introduce several ways to protect your teeth. 1. Develop good brushing habits. Rinse your mouth with warm water after meals and brush your teeth once in the morning and evening. Pay attention to the correct brushing method: brush vertically along the teeth, first brush the inside and then brush the outside. Don't brush back and forth horizontally, or you will damage your gums.

2. Pay attention to oral hygiene and eat less candy. Especially don't eat sugar before going to bed to prevent dental caries. In addition, we should pay attention to the usual hygiene habits, do not bite fingers, do not bite pencils and other foreign bodies, and do not lick your teeth with your tongue. Don't be picky about food, eat more vegetables that can promote chewing, such as celery, cabbage, spinach, kelp and so on. It is beneficial to promote the development of mandible and the neatness of teeth. Eating vegetables regularly can also increase the content of molybdenum in teeth and enhance the hardness and firmness of teeth. Eating vegetables regularly can also prevent dental caries, because vegetables contain 90% water and some fiber substances. When chewing vegetables, the moisture in vegetables can dilute the sugar in the mouth, making it difficult for bacteria to grow; Cellulose can clean and clean teeth. It's important to protect your teeth. I hope everyone will take care of their teeth and show charming smiles!

10. My best composition is 600 words. I am the best.

I remember the first time I went to the Children's Palace to learn martial arts, and then I went to a kindergarten class. When I first walked into the gate of Wushu class, I saw many strange children in front of me. I felt indescribable fear and held my mother's hand tightly. At this time, Teacher Dong came over and said, "Xiaoyi is the best!" After listening to this sentence, I was really not afraid and followed the teacher into the training hall.

From then on, I kept practicing, rain or shine, hot or cold. Whenever I encounter difficulties and don't want to practice, "Xiaoyi is the best!" "This sentence rang in my ear, so I gritted my teeth and persisted.

I am a grade two pupil now, and I have been practicing martial arts for three years. In these three years, I have made great achievements in martial arts. Although this is inseparable from my own efforts and the help of my parents, the most important thing is Teacher Dong's sentence "Xiao Yi is the best!" This sentence has always encouraged me and inspired me to move forward. No pains, no gains. At the age of six, I performed China Wushu for Japanese friends for the first time in an international hotel, which surprised the Japanese. Then I performed it over and over again. What makes me most proud is that I won three first places in Group D of Shaoxing Wushu Competition this year. Tell you the latest news. Recently, he won a gold medal in the China Wushu International Exchange Competition of Hangzhou West Lake Expo! You said, am I great? !

Yes, I am the best, now and in the future!