The three factors that contribute to the formation of caries are , and 5

Dental caries is a multifactorial disease, mainly including three aspects: bacteria, diet, teeth and saliva, all three are interrelated, and without one aspect, caries cannot occur. At present, scholars believe that saliva, as the external environment of the teeth, is an important factor affecting caries.

1.In the process of the occurrence and development of bacterial caries, because bacteria play a leading role in the pathogenesis of dental caries, in recent years, it has been internationally recognized that caries is a bacterial disease that causes caries, and there are many types of bacteria, the most important of which are some Streptococcus mutans and lactobacilli. These bacteria mix with mucin and food debris in saliva and adhere firmly to tooth surfaces and pits and fissures.

This adhesive is called dental plaque or dental plaque. A large number of bacteria in the plaque produce acid, causing decalcification and dissolution of the enamel surface underneath the plaque. Clinical investigations have shown that children with a lot of plaque in the mouth also have more dental caries.

2.Diet Diet is an important role for bacteria in the process of tooth decay formation. Food contains a large amount of carbohydrates and sugars, which not only provide energy for the life and activity of bacteria in the plaque, but also produce organic acids through glycolysis through bacterial metabolism, and the acids remain on the tooth surface and pits and fissures for a long time, so that the enamel is demineralized and destroyed, and then some bacteria dissolve the protein to form caries.

There are many caries-causing sugars, the most important of which is sucrose.

During the period of tooth development, nutrition determines the biochemical structure of tooth tissue, and teeth with good calcification have high caries resistance. If the mineral salts, major vitamins and trace elements such as calcium, phosphorus, vitamins B1, D and fluoride contained in the food are insufficient, the caries resistance of the teeth is low, resulting in the condition of caries disease. Baby teeth have occurred, developed and calcified in the fetal period, and although the nutrition of the new breast milk period has no decisive impact on the development of the fetal baby teeth, strengthening the maternal nutrition is still beneficial to the calcification of the baby teeth.

Unless the mother suffers from severe metabolic disorders or genetic diseases, baby teeth are not easily affected severely.

3.Teeth The morphology, structure, and position of teeth are clearly related to the onset of dental caries. The pits and fissures on the biting surface of the teeth are defects left during development, and the deep pits and fissures are easy to retain cells and food debris, and they are not easy to remove, which is easy to induce tooth decay.

Teeth with insufficient mineralization, especially insufficient calcification, have low density of enamel and dentin, low caries resistance, and are prone to caries. The amount of fluoride in the mineralized structure of the tooth, although small, is important for enhancing the caries resistance of the tooth. If you have an appropriate amount of fluoride in your teeth, you are less likely to develop tooth decay.

The structure and calcification of baby teeth and young permanent teeth are not mature enough, so they are susceptible to cariogenic factors and have a high rate of caries.

Bacteria, diet, teeth, and saliva.

An incorrect description of the cause of caries is late teething.

Tooth decay is a relatively common dental disease phenomenon in life, and this disease usually occurs in children, of course, the occurrence of tooth decay will make the tooth surface form a large cavity, and in serious cases, it will also lead to tooth loss, so we must find the cause of tooth decay, in order to prevent it well in life.

Many of my friends suffer from tooth decay, and when this disease occurs, mild patients will have cavities in their teeth, and in severe cases, it may lead to tooth pain and eventually even tooth loss. Of course, tooth decay seriously affects the patient's life, so it must be good to avoid tooth damage, what are the causes of tooth decay?

1. Eat a lot of sweets for a long time.

Sweets are a kind of food that many friends like to eat, and this kind of sweets are especially preferred by children, such as chocolate, biscuits, pastries, etc., if these sweet things are attached to the surface of the teeth for a long time, then it will provide strong conditions for caries bacteria in dental plaque, and finally lead to the occurrence of tooth decay.

2. The way of brushing your teeth is not correct.

The correct way to brush teeth should be to use horizontal brushing on the chewing surface of the teeth, like that kind of back and forth sawing action, and the inside and outside of the teeth can be brushed vertically, so that the dirt on the surface of the teeth can be completely brushed, and it also avoids food residues and plaque from eroding the teeth.

3. Don't brush your teeth after eating.

Many friends do not have the habit of brushing their teeth after eating, especially after dinner, in fact, this bad habit is the biggest cause of tooth decay, because food will adhere to a large amount of food on the surface of the teeth, and if you do not brush your teeth after dinner, then a large amount of food residues will exist in the gaps of the teeth, and finally lead to the occurrence of tooth decay.

4. Improper selection of toothpaste.

Many friends suffer from tooth decay may be caused by improper selection of toothpaste, some toothpastes with high alkaline content are actually not suitable for brushing, so we should buy some fluoride toothpaste in our daily life, and we should also rinse our mouth with foam in our mouth for two or three minutes when brushing our teeth, so that the foam can flow back and forth between the lips and teeth, and the fluoride ions can also be dissolved in the foam to protect the teeth.

5. Never check the health of your teeth.

If you want your teeth to be healthier, in fact, we have to check your teeth every once in a while, because caries is not easy to detect when it is formed in the early stage, and once the condition worsens, then there will be pain, and there will be a small black hole in the teeth at this time, so checking the teeth every once in a while can also avoid the occurrence of caries.

6. The teeth are not aligned.

Some patients have tooth decay, which may be caused by the irregular alignment of their own teeth, because crooked teeth are easy to stuff food into the gap between the teeth when chewing food, and it is also easy to let the food stay on the surface of the teeth, and finally cause tooth decay, so once you find that your teeth are not aligned, you can correct it by restoration.

Dental caries is a progressive lesion of the hard tissue of the tooth caused by the combination of various factors in the oral cavity, which is manifested as inorganic demineralization and organic matter decomposition, and changes from color to substantial lesions with the development of the disease. Tooth decay is a bacterial disease, so it can be secondary to pulpitis and apical periodontitis, and can even cause inflammation of the alveolar bone and jaw. Secondary infections of dental caries can form lesions that cause or add other systemic diseases such as arthritis, periocarditis, chronic nephritis, and a variety of eye diseases.

Dental caries should be prevented by health care.

Problem analysis: Classification of caries: According to the degree of lesions, caries is divided into superficial caries (enamel caries or cementum caries), middle caries (superficial dentin caries), deep caries (deep dentin caries),; According to the classification of lesions, caries can be divided into facial caries, neck caries, adjacent facial caries, buccal, lip and tongue caries; According to the progression of the lesion, caries can be divided into chronic caries, acute caries, quiescent caries, cessation of caries, and secondary caries.

Hello, caries is insect teeth, tooth decay or rotten teeth, it is generally believed that caries is a cavity in the tooth, in fact, there is no caries in the early stage of caries. Early caries can see chalky changes on the surface of the anterior teeth, sometimes the chalk color will absorb pigment and turn into yellow patches, and the teeth will become rough and dull. Small black dots or small black lines can be seen on the surface of the back teeth, and the caries of the posterior teeth progresses rapidly, and once a small black spot is found, there may be a large hole below the black spot.

If you find a small black spot on the occlusal surface of the back teeth, you should pay attention to it and seek medical attention in time for examination. For caries that occurs between the teeth, it is difficult to detect the stage of progression. Early decay in this area can be detected during regular oral examinations and X-rays.

Answer]: Acute caries and wet caries are more common in deciduous teeth. When the crown of the tooth is widely disintegrated, the pulp can still be normal.

Deciduous teeth have thin enamel and dentin, low calcification, weak acid resistance, strong permeability, and high solubility, so they develop rapidly. The caries of baby teeth in China shows that it rises in a straight line from about 1 year old and reaches a peak at the age of 7 or 8. Annular caries is a non-quiescent caries that occurs rapidly on the labial surface and adjacent surface of the deciduous anterior teeth, forming caries around the neck of the tooth and around the crown.

Therefore, C is selected for this question.

<>1. Dental caries, commonly known as worm teeth and tooth decay, is a bacterial disease, so it can cause secondary pulpitis and apical periodontitis, and even cause alveolar bone and jaw inflammation. If left unchecked, the lesion will continue to develop, forming cavities, and eventually the crown will disappear completely. A decayed cavity does not heal on its own, and the end result of its development is tooth loss.

2. Dental caries - a progressive lesion of tooth hard tissue caused by the composite action of various factors in the oral cavity, which is manifested as inorganic demineralization and decomposition of organic matter, and changes from color to substantial lesions with the development of the disease. It is characterized by a high incidence and wide distribution. It is the main common disease of the oral cavity and one of the most common diseases of human beings, and the World Health Organization has listed it as one of the three key diseases of human beings along with cancerous orange and cardiovascular diseases.

The explanation of the word caries is: refers to the woman's deliberately contrived smile like a toothache.

The word caries is explained as a deliberate smile that looks like a toothache on a woman's mind. The structures are: caries (left and right structure) teeth (upper and lower structure). Pinyin is: qǔchǐ.

What is the specific explanation of dental caries, we will introduce it to you through the following aspects:

Synonyms about dental caries.

Tooth decay. Verses about dental caries.

The eyes are full of makeup, caries, bent shoulders, caries, caries, caries, caries, and moaning.

Idioms about dental caries.

Able to have sharp teeth, incisor teeth, white teeth, green eyebrows, lips and teeth, teeth and teeth, teeth and hair, lips and teeth depend on each other, jaw-eyed teeth, toothless and unforgettable, sharp teeth, and teeth incision.

Words about tooth decay.

Able to have sharp teeth, teeth to cut teeth, teeth to cut lips and teeth, teeth to cut teeth, teeth to wear, teeth to sharp, white teeth, green eyebrows, teeth to cut teeth, lips and teeth to rely on each other, teeth grinding teeth, teeth chiseling.

Sentence formation about dental caries.

1. This may sound a little strange, because the whole reason for the production of baby water is to protect the growth of baby teeth, and it is hoped to prevent tooth decay in children.

2. Anxi Tieguanyin is a natural and delicious drink, which is not only fragrant and mellow, but also has a leading health care function in tea. Medical research has also proved that in addition to the health care function of general tea, the effect of Tieguanyin also has the effects of anti-aging, anti-cancer, anti-arteriosclerosis, anti-commotion and treatment of diabetes, bodybuilding, prevention and treatment of dental caries, clearing heat and reducing fire, and anti-tobacco sobering.

3. Toothache is not a disease, no one asks when it hurts. Ignorant old concepts are really harmful. Brush your teeth every morning and evening. Oral hygiene, caries does not look for you. Eat more calcium-containing vegetables to strengthen teeth and bones. On National Love Teeth Day, I wish you good teeth, a happy stomach, and all the best!

4. ObjectiveTo study the effect of fluoride toothpaste on dental fluorosis and dental caries in children with high fluoride drinking water.

5. In recent years, pit and fissure sealants have been applied to the surface of children's teeth, which is easy to close the pits and fissures, spots and other parts where caries occurs, which has played a good role in preventing caries.