Author: Zhang Zhihan

Many people refer to dental caries as "insect teeth", but is it really caused by insects?
In fact, teeth are very hard, and even insects with sharp teeth may not be able to bite them. The main cause of dental caries is bacteria in the oral cavity. There are a large number of bacteria in the oral cavity. If oral hygiene is not done properly, bacteria will continue to accumulate and adhere to the tooth surface, forming dental plaque that cannot be washed away by water.

Some bacteria in dental plaque can produce acidic substances that can damage teeth, and we call these bacteria cariogenic bacteria. After consuming the sugar in food, cariogenic bacteria produce various acids, which stay on the tooth surface for a long time and dissolve and damage the hard tissues, gradually forming dental caries. People often wonder why they still have dental caries even though they don't eat sugar? In fact, besides fruit candy and sugar cubes, biscuits, milk tea, chocolate, and various beverages are also sugary foods.

Whether dental caries is prone to occur is also related to the shape, position, and saliva of teeth, and different people have different abilities to resist caries. For example, some people have crooked teeth, making crowded areas difficult to clean and more likely to become breeding grounds for bacteria.

To turn hard teeth into dental caries, bacteria, food, and teeth all play important roles. This requires us to use fluoride toothpaste to brush our teeth carefully every morning and evening, remove dental plaque and bacteria, eat less various sugary foods and drinks, regularly check our teeth, and stay away from the troubles of dental caries. Let strong teeth accompany us throughout our lives!

A person will have two sets of teeth in his or her life: one set of primary teeth and one set of permanent teeth.

When the baby is about six months old, the teeth will start to erupt, which is the baby teeth, and when the baby is about six years old, the teeth will gradually be replaced, and the new replacement is the permanent teeth.

There are a total of 20 baby teeth, and the total number of permanent teeth is larger than the baby teeth, with 28 to 32 teeth.

What we're going to talk about today is baby teeth.

We have just mentioned that babies generally erupt their first baby teeth at about 6 months of age, and the earliest eruption is the mandibular front teeth (as shown in the figure).

Baby teeth are all at once full length?

Of course not.

The baby's baby teeth grow out in batches, and there are certain rules and characteristics.

Generally, the front teeth erupt first, and the left and right pairs erupt, and the lower teeth generally erupt earlier than the upper teeth of the same name.

The number 1 is the first of the two mandibular central incisors, followed by the two maxillary central incisors, then the two maxillary lateral incisors, then the two mandibular lateral incisors, and then to the maxillary.

The eruption of the two first molar teeth is followed by the two lower first molar teeth.

Back in the upper jaw, after the two maxillary deciduous teeth grow out, the two mandibular deciduous teeth will also grow out, and finally the four second deciduous teeth will come out, so that all the teeth will come out.

What needs to be emphasized here is that usually between the ages of two and a half and three and a half years, the baby's 20 baby teeth will all erupt, but parents need to realize that there are individual differences in the baby's teeth.

Some babies teething early, 3 months old began to erupt teeth; Some babies teething late, 10-11 months of age to start teething; It may even be normal for babies to have lower incisor teeth that don't erupt until they are about 1 year old.

Moreover, the order of tooth eruption does not necessarily follow the exact order shown in the picture, and the order of tooth eruption will vary from person to person.

In addition, gender, genetics, nutrition, environment and other factors will also affect the time of tooth eruption.

Girls' teeth erupt earlier than boys'.

Children with good nutrition and high height and weight have earlier teeth eruption than children with poor nutrition and low height and weight.

Children in warm areas and children in cold areas had early tooth eruption.

If you do not have teeth after the age of 1, you should see a doctor as soon as possible to examine the cause in detail to determine whether there are local or systemic diseases or developmental abnormalities.

Teething soon after birth, also need to seek medical help.

A baby's teeth that erupt prematurely are called birth teeth or newborn teeth.

Born teeth: Babies are born with teeth in their mouths.

New teeth: teeth that appear within 30 days of birth.

See a doctor as soon as possible if you find a birth tooth or newborn tooth.

Due to premature eruption, the root of the tooth is not fully formed, if the tooth is loose, fall out, and is mistakenly inhaled by the baby's trachea, it may cause life danger, in this case, it is recommended to remove as soon as possible.

If it is not loose, you can choose to retain it according to the doctor's examination results.

During the teething process, the baby may have salivation, itchy gums, like to bite things, temperature rise, eruption of hematoma, gum congestion, edema, poor appetite and diarrhea, irritability and other conditions.

At this time, parents should do a good job of the baby's oral care, keep the baby's oral hygiene, gently massage the baby's gums, provide the baby with a molar stick, etc., to help the baby relieve the discomfort when the gums erupt.

Finally, one more reminder:

Baby teeth whether early or late eruption, should be timely medical treatment!

Baby teething during the physical discomfort to seek professional help, so as not to delay the condition!

After the child is born, about 6 months, the baby teeth begin to erupt, until about 2 and a half years old, all 20 baby teeth erupt.

Wait until 6-7 years old to 12-13 years old, permanent teeth gradually replace the baby teeth, 12-13 years old, all permanent teeth in the mouth.

After the permanent teeth are complete, there are normally 28 to 32 teeth, which are called permanent central incisor teeth, permanent lateral incisor teeth, permanent cusp teeth, first premolar teeth, second premolar teeth, and first, second, and third molars.

Normal permanent teeth are the last set of teeth in life, if the permanent teeth fall out due to various reasons, there will be no new teeth replacement, so the protection of permanent teeth is more important.

How are the teeth changed?

Tooth replacement can be divided into two simple processes: loosening of baby teeth and eruption of permanent teeth.

The new tooth at the bottom begins to grow upward, the root of the baby tooth to be replaced begins to absorb, and the tooth gradually loosens until it shakes freely and falls out.

At this time, be sure to pay attention to cleanliness, because food stays here, which can lead to gingivitis.

Parents should remind their little baby that in the process of tooth replacement, try not to lick with the tongue or break with the fingers.

What are the characteristics of young permanent teeth?

1. The shape is serrated.
2. No baby teeth white or even yellow.
3. Large incisors.
4. Young permanent teeth have thin teeth, low salinity, less wear, deep pits and trenches, and are more troublesome to clean, so it is easy to suffer from caries.
5. If caries are present, decay can progress rapidly, so prevention of caries is very important for new permanent teeth.

What do you need to pay attention to when replacing teeth?

Observe the growth

1. Retention or premature loss of baby teeth

Baby teeth retention, easy to lead to "double row of teeth", early loss of baby teeth, easy to lead to dislocation of permanent teeth eruption.

2, permanent tooth eruption difficulty

Periapical lesions, trauma, premature loss and retention of deciduous teeth should be considered.

3. Deformed teeth

Timely treatment of malocclusion malformations that affect normal tooth eruption and dentition development.

Self-oral care during dental replacement

Parents should help their babies brush their teeth.

Children as young as two will voluntarily ask themselves to brush their teeth, but parents should understand that at this age, children's fine motor skills have not yet formed, and they can not really brush their teeth.

Therefore, parents should not only guide their children to brush their teeth independently, once every morning and night, but also help their children clean the gaps between their teeth after their children brush.

Watch one's diet

Children should eat more food with high fiber and certain hardness during tooth replacement, promote the timely loss of milk teeth, and also help to affect the facial and eye muscle movement through chewing movement, and promote the development of gums, jaws and facial bones.

One more thing to keep in mind:

Don't eat sweets before going to bed at night, don't drink sweetened milk, drinks, because the bacteria in the mouth are most active when people are asleep.

Change bad oral habits

· Correct bad habits

During the tooth replacement period, when the baby teeth are loose and about to fall out, children are often used to licking the loose teeth with their tongue, which is a bad habit that will affect the normal eruption of permanent teeth and should be corrected in time.

· Protect "sixth age teeth"

What is "sixth-age teeth"?

The first molar is the earliest tooth eruption in the permanent teeth, about 6 years old, known as the "sixth age teeth". The first permanent molar erupts directly from the gums behind the deciduous dentition and does not replace any deciduous teeth.

There are four sixth-age teeth, one on each side, all called "sixth-age teeth".

Sixth-age teeth are permanent teeth that are no longer replaced, and will accompany the child for life, because there is no deciduous tooth loss, and sixth-age teeth "quietly" sprout from the rear of the deciduous dentition, it is easy to be ignored by parents and children, and there is no timely and effective cleaning and protection.

Oral examination

Depending on the oral disease status of the child, an oral examination is recommended every 3-6 months.

Liqiu is the 13th solar term of the 24 solar terms and also the beginning of autumn.

After autumn, the climate gradually becomes dry, making it easy for bacteria to grow in the mouth, which can lead to oral diseases.

Among numerous oral diseases, the most common is periodontal disease, which is currently one of the main causes of tooth loss in adults.

Clinical big data shows that at present, the incidence of adult periodontal disease is more than 90%, and periodontal disease can be called the first killer of oral health!

The so-called periodontal disease, in simple terms, is a disease of the supporting tissues around the teeth.

It refers to various diseases that occur in the supporting tissues around teeth under the influence of multiple factors, mainly including gingivitis and periodontitis.

Gingivitis is caused by the accumulation of plaque and tartar around teeth, leading to inflammation of the gums, manifested as redness, swelling, and bleeding.

Periodontitis is a condition where plaque and tartar are not effectively removed for a long time, and inflammation continuously stimulates periodontal tissue, leading to periodontal tissue recession, alveolar bone resorption, and soil loss, ultimately resulting in tooth loosening and loss.

In the early stages of periodontal disease, it is characterized by swollen gums and easy bleeding; In the mid-term, it manifests as periodontal pocket formation, periodontal pus discharge, and oral odor.

If the symptoms continue to worsen, alveolar bone resorption, tooth loosening and displacement may occur, and more seriously, tooth loss or extraction may occur.

If periodontal disease is not given enough attention in the early stages of the disease and allowed to develop, the bacteria in the mouth may increase significantly, and bacteria may also enter the bloodstream, causing other systemic diseases in the body.

The hazards of periodontal disease:

Periodontal disease is the leading cause of tooth loss in adults.

Periodontitis factors can reduce insulin sensitivity in diabetes patients, affect blood sugar control, and aggravate diabetes.

The incidence rate of cardiovascular and cerebrovascular diseases in patients with alveolar bone resorption will also increase.

Due to loose teeth, chewing efficiency is reduced, which increases the burden on the gastrointestinal tract and can easily lead to digestive diseases.

It can be seen that oral health and overall health are not just words!

So the question is, how to treat and prevent periodontal disease?

The prevention of periodontal disease mainly involves the control of plaque, including self-protection and professional prevention.

Self prevention

1. Maintain good oral hygiene: Master scientific and effective brushing methods, use dental floss, interdental brushes to clean gaps between teeth, or use dental irrigators and mouthwash to help clean the mouth.

The correct brushing method: The horizontal vibration brushing method is an effective way to remove plaque from the gingival sulcus and tooth surface.

Tool selection: The brush head of the toothbrush should be of moderate size and have medium soft bristles. It is recommended to replace it every 3 months; Use 1 gram (1cm) of toothpaste each time; One person, one toothbrush, one person, one toothpaste, one cup per person.

Precautions for brushing teeth: require "comprehensive coverage" and "cleanliness"; Brush your teeth for at least 2 minutes each time; Brush your teeth at least twice a day, especially at night.

Dental floss: The use of dental floss can effectively remove plaque and food residue between teeth.

Interdental brush: It is a tool for removing dental plaque and food residue between teeth. You can choose the appropriate interdental brush according to the size of your own tooth gap.

Toothbrush: It is a tool for removing dental plaque and food residue between teeth. The high-pressure pulse water flow of the toothbrush can flush into the gaps between teeth and deep into the gums.

Mouthwash: Choose mouthwash with antibacterial and anti-inflammatory effects, twice a day, after brushing your teeth in the morning and evening, rinse for at least one minute each time to inhibit plaque adhesion to the tooth surface and slow down plaque growth.

2. Good lifestyle habits: such as quitting smoking, rinsing mouth after meals, etc.

Professional Prevention

Regular check ups and teeth cleaning: Teeth cleaning will not harm teeth, and dentists recommend cleaning at least once a year. During the cleaning process, other oral problems can also be detected in a timely manner.

Remove local adverse factors in the oral cavity: improve food impaction, improve poor restorations, etc.

Treat and control other systemic diseases: such as hypertension, diabetes, etc.

Liqiu marks the official start of the Mengqiu season, but it does not mean the end of the hot weather. It is the third hottest solar term after Dashu and Xiaoshu, so after Liqiu, the weather is still very hot. Everyone still needs to take measures to prevent heatstroke and cool down.

Wishing great parents a healthy summer!

Many people talk about "wisdom teeth" color change, because wisdom teeth bring them too many painful memories, such as severe toothache, unable to open the mouth, difficult to eat, facial swelling…

And even with this "pain mask", many people are still afraid of seeing the tooth, do not want to bear the pain of tooth extraction, and even some people think that tooth extraction will become stupid, so they would rather endure, rather than go to the hospital to have a tooth extraction.

Today we are going to take you to a new understanding of wisdom teeth and the dangers of wisdom teeth.

Wisdom teeth, also known as the third molar, are the last teeth to erupt in the mouth, usually around the age of 18. In the growth process of wisdom teeth, often because of insufficient space or special location, may cause a variety of complications, such as wisdom teeth pericoronitis, caries, periapical inflammation, periodontal disease, these are to long wisdom teeth small partners wear "pain mask" reasons.

Of course, there are also lucky small partners, his wisdom teeth do not have obvious clinical discomfort symptoms.

In the face of different situations, how should we judge whether wisdom teeth should be extracted?

Some people say no pain, no need to pull.

Let me tell you first, that's wrong.

Wisdom teeth should not be extracted, need professional doctors to help judge the risk probability of disease of the wisdom teeth through examination, and then judge whether to remove according to the examination results.

How to tell if wisdom teeth need to be removed?

Conditions that do not require removal

Wisdom teeth with correct position, normal upper and lower occlusal relationship, normal chewing function, insufficient to induce pericoronitis, no damage to their own teeth or neighboring teeth, and no obvious clinical discomfort symptoms, such as food impaction, pain, etc., may not be removed.

Conditions requiring removal

The main indications of wisdom tooth removal are affected, adjacent tooth lesions, caries, pericoronitis and so on.

In addition, if the upper and lower wisdom teeth contact with the upper alveolar posterior nerve and lower alveolar nerve, it will produce obvious neuralgia, earache, migraine and other symptoms, in the occurrence of the above diseases caused by wisdom teeth, it is usually recommended to remove the wisdom teeth clinically.

Dental advice

Pericoronitis of wisdom teeth will occur repeatedly, constantly causing pain, for wisdom teeth that have experienced pain, it is recommended to remove as soon as possible, so as not to increase the difficulty of removal over time.

Does pulling a tooth hurt after all?

Light listening to rumors, many people will feel that the tooth extraction not only hurts, but also can kill, but in fact, in the process of tooth extraction, patients can feel the doctor shake the teeth, operate the instrument in the mouth, but will not feel pain, because it will hit! Numb! Medicine!

What we usually call toothache refers to postoperative pain, which has a lot to do with the difficulty of wisdom teeth.

Generally, the pain is the most severe on the first day after tooth extraction, and this pain situation will last for about 3 days, and the pain will be relieved after 3 days, and almost disappear after 1 week.

What time of day is best for tooth extraction?

Some time ago, the network hot discussion, said that it is best to pull wisdom teeth in the morning, and listed a lot of reasons, of course, there are also small partners do not believe that the morning and afternoon are the same, not so mysterious.

Do we have to have wisdom teeth extracted in the morning?

For doctors, whether it is morning or afternoon, it is possible to pull teeth, but if you have to choose one, it is recommended that the morning.

Generally speaking, the state of people in the morning will be better than in the afternoon, especially at 8-10 o 'clock, when the doctor's work has just begun, attention is more concentrated, and the patient's energy and physical strength are full.

As far as wisdom teeth are concerned, it is not recommended to have them removed near the end of the day. Because the removal of wisdom teeth, especially after the removal of some more complex wisdom teeth, it is likely to cause bleeding and other complications, oral clinics in the daytime, if near the time of work extraction, night problems, may not be able to find a doctor in time to solve, and have a certain risk.

Teeth cleaning, I believe many people have heard of it.

The professional term is "gingival scaling", which refers to the use of scaling instruments to remove tartar, plaque, and stains on the gums, and polish the tooth surface to delay the re deposition of plaque and tartar. It can effectively remove harmful substances such as dental plaque and tartar, reduce their stimulation and damage to oral tissues, and prevent the occurrence of oral diseases. But many people's understanding of teeth cleaning does not start from the effectiveness of cleaning, but from misconceptions!

Misconception 1: Teeth cleaning can harm teeth

The tools used during the dental cleaning process are strictly disinfected and operated by trained doctors, ensuring the health of teeth and gums while removing plaque and tartar. Generally speaking, as long as it is operated in a formal dental institution and by professional personnel in compliance, it will not cause harm to teeth.

Misconception 2: Teeth become more sensitive after teeth cleaning

After teeth cleaning, the sensitivity of the teeth may temporarily increase, but this is due to the increased exposure of sensitive areas on the surface of the teeth after the removal of plaque and tartar. Over time, teeth will gradually adapt to these changes and their sensitivity will gradually decrease. After teeth cleaning, it is recommended to use anti sensitivity toothpaste for at least 2 weeks. If tooth sensitivity persists or worsens, it is recommended to seek medical examination in a timely manner.

Misconception 3: Teeth cleaning can only remove surface dirt

Teeth cleaning can not only remove plaque and tartar on the surface of teeth, but also penetrate deep into the gingival sulcus to remove plaque and tartar. This can effectively reduce the stimulation of dental plaque on the gums and prevent the occurrence of oral diseases such as periodontitis.

Misconception 4: There is no need to brush your teeth again after cleaning

Although teeth cleaning can remove plaque and tartar on the surface of teeth, it cannot replace daily brushing and oral hygiene. Brushing teeth is one of the basic measures to maintain oral health. It is recommended to brush teeth at least twice a day and use the correct brushing methods and tools such as toothbrushes for cleaning.

To ensure oral health and recovery effectiveness, the following points should be noted after teeth cleaning:

1. Avoid food that is too cold or too hot

Within one hour after teeth cleaning, do not eat food that is too cold or too hot to reduce irritation to the teeth and gums.

Within two to three weeks, it is also advisable to avoid consuming food that is too cold or too hot to physically irritate teeth and gums.

2 Dietary adjustments

Please do not eat food that is too spicy or too sour or cold within three days.

Within two weeks after teeth cleaning, attention should be paid to avoiding foods with heavier colors, such as coffee, soy sauce, cola, etc., as freshly cleaned teeth are prone to external discoloration.

3 Oral hygiene

After teeth cleaning, it is recommended to brush your teeth every morning and evening, and use tools such as dental floss and interdental brushes to clean the adjacent surfaces of your teeth, in order to prevent the continuous deposition of plaque, tartar, and pigments on your teeth.

Pay attention to changing the brushing method, do not brush horizontally, but use the correct brushing method, such as arc brushing method, horizontal vibration brushing method, etc.

4 Anti sensitivity measures

If teeth become sensitive to heat and cold and feel sore after cleaning, this temporary symptom usually disappears within about a week.

It is recommended to use anti sensitivity toothpaste for at least 2 weeks after teeth cleaning. If soreness persists, continue using it for about a month.

5 Regular check ups

Regular check ups should be taken after teeth cleaning. During each follow-up examination, an oral examination should be conducted, and if necessary, teeth can be cleaned again.

6. Pay attention to medication use

Patients with inflammation or other diseases should regularly take anti-inflammatory drugs before and after teeth cleaning, and if necessary, use corresponding mouthwash to rinse and reduce inflammation to prevent the spread of inflammation.

7. Observe the bleeding situation

If gum bleeding persists after teeth cleaning, do not be overly nervous. You should promptly go to the hospital for blood tests to see if there is coagulation dysfunction or other systemic diseases, and do not delay treatment.