Root canal therapy Conditions

Root canal therapy is the treatment of various causes endodontics, periapical diseases, the preferred method to save the crown, and root, but also internationally recognized most effective treatment method. Department to introduce the latest root canal treatment equipment, instruments and materials, to save the teeth can not be retained in the past, to obtain good results. The treatment with high technical content, difficult and complicated to operate, the doctor a long time, relatively high prices. Teeth have root canal influenced by age; race, genetic, systemic diseases, and lesions, there are significant individual differences, even if the same individual teeth root canal is also very different, the number of dental equipment these has root canal treatment difficult. The clinical effects of treatment and treatment. Root canal may occur in the course of treatment and after treatment, would like to draw your attention:

1. Drugs to stimulate cause short-term pain, swelling

2. The root canal Bay Area, stenos is caused by equipment broken or sidewall wear through.

3. The tooth was born in the organization too thin to cause teeth to break

4. Allergic to the emergence of drug allergic reactions

5. Too long or curved root and other anatomic variations of factors led to Awareness of the hazards of missing teeth devices beyond the apical foramen, causing numbness dry and symptoms of local organizations

6. May be after the removal of carious tissue remaining residual crown and root

7. Teeth inherent cracked, root canal treatment fissure may increase or fracture

8. Root canal calcification atresia, the teeth may be due to poor treatment were removed.

The dental implant is the best method of repair missing teeth

The dental implant restoration principle is the location of a nail-like metal implants missing teeth, crown bordered based on. Dental implant is the best way to fix missing teeth, dental implants are more secure than the traditional dentures, dental implants do not involve adjacent teeth do not damage adjacent teeth, dental implant strength by force and chewing efficiency has dental equipment greatly improved than conventional dentures.

Although the dental implant has many advantages, but not apply to everyone. Theoretically, from teenage maxillofacial development of young people to more than 80 years old a dental implant. However, dental implants, oral inflammation, patients with mucosal disease, bleeding disorders, hypertension, heart disease, diabetes, osteoporosis, psychiatric, endocrine and Which teeth need root canal treatment other systemic diseases, treatment in these patients are stable after You can receive dental implants.

The dental implant can be comparable to natural teeth, dental implants, life in general in more than 10 years, does a good job in the dental implant dental implant care, and dental implants can be accompanied by our lifetime.

What are the reasons for pulp necrosis?

The pulp is oxygen and nutrients to the organization of the supply of teeth. When the pulp by some factors, so that the pulp tissue hypoxia, causing necrotic lesions of the pulp tissue, medically known as pulp necrosis. Lead to pulp necrosis what are the reasons?

1. Chemical drug stimulation: such as phenol disinfection cavities, phenol and strong penetration can damage the pulp tissue. Another example is the silver nitrate for cavity disinfection, if used improperly, it will damage the pulp tissue.

2. Dental trauma: tooth because of the injury, the organization of the apical and the apical and thrombosis within the root canal, resulting in dental equipment pulp necrosis Medical Education Network has collected.

3. Dental caries complement: Fix free material, material such as silicon cement powder free acid stimulate the pulp caused necrosis. According to the data to show, filling the teeth of the silicate cement powder, the beginning of a significant inflammatory cell infiltration, made ​​Odon oblast layer disorder, 5-8 weeks, the pulp was moderate to severe inflammation, with abscess formation. Another example of composite resin materials in the left end of saturated gene pulp stimulation.

What is the extraction of taboos?

The extraction of oral outpatient minor surgery, but surgery is small, if it does not give attention, will stir up a lot of trouble, and even life-threatening. Therefore, to understand the extraction taboo is more important.

1. Pregnant women avoid tooth extraction: pregnant women extraction three months of pregnancy can cause miscarriage, eight months pregnant women extraction can lead to premature delivery.

2. Habitual abortion ban extraction.

3. Avoid extraction with hematologic diseases: leukemia, regenerative anemia, pernicious anemia, hemophilia, idiopathic thrombocytopenic purpura patients, such as tooth extraction, due to the lack of clotting factor and platelet function between the obstacle and dental equipment can cause severe bleeding and life-threatening.

4. Diabetic patients avoid tooth extraction: its resistance of bacteria generally decreased after tooth extraction lead to various infections, made ​​it worse.

5 Heart patients avoid tooth extraction: extraction due to the patient, fear, nervousness pull, coupled with the extraction will affect and pain stimulation, the patient may occur at any time cardiovascular accidents and sudden death.

6. Cirrhosis and chronic hepatitis patients avoid tooth extraction: these people have a tendency to bleed, and may cause bleed after tooth extraction.

7. During the acute infectious disease avoid tooth extraction: acute hepatitis, tuberculosis activities of measles, epidemic hemorrhagic fever, and a variety of acute inflammatory period. Tooth extraction, it is prone to the proliferation of postoperative infection and Fillings must sooner the better inflammation, so avoid tooth extraction before the disease healed.

8. Menstrual period avoid tooth extraction: the extraction of the menstrual period will cause excessive menstrual flow, resulting in non-physiological blood loss.

How to choose dental materials

In addition to listening to the doctor's recommendations, patients should also dental materials have a general understanding, in order to put forward their own views. Dental materials are mainly divided into three types, silver amalgam, glass ionomer filling materials, light-cured composite resin.

The amalgam is a metallic silver and mercury, with a material of a small amount of other metal. Its good wear resistance, strength, and cheap, suitable for dental filling; drawback is the color (silver), the curing process of the expansion phenomenon, likely to result in dental equipment tooth splitting, and is not environmentally friendly, the presence of heavy metal pollution of the environment problem.

The color of the glass ionomer restorative materials bond and teeth, help to protect the pulp tissue to prevent secondary caries; drawback is that the Missing teeth repair wear resistance is not good.

Light curing composite resin advantage of the beautiful, almost as real teeth, adhesion, wear resistance and good; drawback is that the price is more expensive.

Dental anomalies of reasons

1. Evolutionary factors: the long human evolutionary process, degradation of the human body in many organs. Jaw mouth in the facial system, this degenerative narrowing phenomenon is also very obvious. Studies have shown that the stomatognathic organs of various components of degradation narrowed the existence of the imbalances that masticatory muscle degradation is most obvious, jaw, followed by the degradation of the teeth is the most obvious. The relatively small alveolar bone will not be able to accommodate relatively large teeth, leading to crowded teeth missing.

2. Environmental factors: environmental factors are numerous and complex is the main cause dentition. Important: the food is too small due to the improved quality of life, people's food is more sophisticated, the development of young people and children, too soft, fine food masticatory function can not be brought into full play, the alveolar bone Debu enough stimulation to dental equipment maxillary growth restricted, causing the teeth crowded; bad habits in childhood to develop the sucking means, licking tongue, the Shenshe Yaoxia Chun and mouth breathing habits such as not timely corrected, then normal eruption of the teeth and their position arranged to have a negative impact caused by dentition; replace obstacles deciduous teeth prematurely lost or fails to drop the primary and permanent teeth replace the obstacles are caused by inherited the eruption of permanent teeth dislocation, resulting in the dentition.

Why dental filling toothache?

Like dental filling toothache main reasons are the following:

1. Treatment needs inactivation of the pulp, or the day after the day of closure after the inactivation of drugs because the drug effects may appear toothache, but the pain is not severe and will not last long.

2. Dental filling preparation process of the hole-shaped or disinfecting substances stimulate the pulp due to short time hot and cold stimulation pain, such dental equipment cases do not need special treatment, 1-2 in the future generally self-healing.

3. Cavity deep, with the cushioning material is too thin; you can not cut off the hot and cold stimulation of the amalgam conduction, while the hot and cold stimulation pain symptoms. This requires that the thickening of the bottom material and then make the filling.

Recent dental filling stimulate pain or spontaneous pain may be due to due to the filling material of certain chemicals to stimulate pulp or apical organization is pulp inactivation incomplete.

Without pressure for some time before the pain because often concurrent secondary caries pulpitis. Depending on the case the pulp appease or other endodontic treatment. Recent occlusal pain, most of the filling material is too high, early exposure caused when the bite. A few days after transfer service can be restored to normal.

Concerned about the oral health of primary and secondary

In order to do a good job in the oral health of primary and secondary school students, should do the following tasks:

A. Study of oral health knowledge in primary school is just around the corner a long body, long knowledge of an important period of their own initiative Readings popular science books on oral health, raise awareness, cultivate self-oral care ability.

Two. Conduct regular oral health check at least once a year. Ensure early detection of problems will be dealt with in a timely manner. Like to stress that the correct treatment of sick of the attitude of the deciduous teeth, must not take the indifferent attitude, and dental equipment give appropriate treatment should be under the guidance of the dentist; not the age of eruption of first permanent molars, mistakenly believe that the primary molars, sick is not timely processing, then the impact.

3. Learn the proper method of brushing use health toothbrush and fluoride toothpaste. Do morning and evening brushing, mouthwash after meals, and an early age to develop good oral hygiene habits.

4. Primary and secondary students are at an important period of oral health: eruption from the age of six permanent teeth continue to the deciduous turn off, the formation How corrective buck teeth the best of mixed primary and permanent dentition stage, until about 12 years old, until the permanent teeth eruption all, this is the jaw and teeth of children arch development an important period of growth. It is this period of dental caries, gingivitis during the peak period of the disease.

5 Reasonable diets to eat less sugary snacks and easy paste teeth fine pastries. Brush our teeth or eat immediately after, especially after bedtime brushing, no longer eat.

How long to wash your teeth is best?

Have a lot of people on a regular basis scaling, regular scaling as part of the oral health has been accepted by more and more mass, and the scaling is becoming more and more detailed. Some people have often to scaling. However, how long to wash your teeth best? The following oral experts to answer this question.

Often scaling is to specify the period to the oral specialist hospitals, ultrasonic teeth cleaning by a professional dentist. Ultrasonic scaling is a highly specialized technical work, the use of ultrasonic scaler scaling, takes about an hour. Medically recommended periodontal health of the population, should be every six months to 1 year to go to a regular hospital for ultrasonic scaler, to prevent the occurrence of periodontal disease; With periodontal disease, such as brushing teeth bleeding gums swelling symptoms and be ready to go specialist hospital for treatment, doctors will be dental equipment based on each patient's condition for scaling and other periodontal treatment.

Scaling only gingivitis and mild periodontitis. In severe periodontitis, deep Ministry of tartar limited role, then the need for further periodontal treatment. Of course, there are special populations can not be scaling. Such as installing a pacemaker patients can not accept the ultrasonic scaling, otherwise it would cause danger. The tartar is evolving, from time to time, it is necessary to wash. Some of my friends are worried that scaling will damage the teeth. Objective, if the operation of The importance of children's orthodontic specification, this will not bring any harm to the teeth, the work tip of the main parts in contact when the scaling is tartar, vibration cleaning teeth sharp surface of the tooth attachment crushed effect, combined with water sprayed continuously flushing the periodontal scaling better, even contact with the teeth, the force is very slight, so this worry is unnecessary. Of course, for the coloration of the spot of tobacco, tea stains, debris, and the tooth surface, sandblasting scaling effect is more pronounced.

How long wear to braces?

Orthodontic experts pointed out that because the extent of deformity of each tooth, the dentist based on the actual situation of the patient's choice of types of braces is different; therefore the time required for braces is not the same. Orthodontics in the traditional sense of the need to wear braces treatment. Clinical, braces for straightening teeth is not entirely, but a small metal bracket; depend on the binder glued to the tooth surface. The middle of the bracket has a small slot that can accommodate the correction of the afterburner with the arch wire, weak orthodontic force to the teeth slowly pulled to the correct location.

Patients own tooth deformity

More serious consumers of the degree of dental anomalies, braces, dental anomalies and low level of consumer time are short.

Selected types of braces

The time required for different types of braces are different.

Time of patients with orthodontic

How long to wear braces, a brace wearing time and dental equipment adult braces to wear for young people during the time is different. A teenage brace how long is shorter than adults.

Care of patients with late

Consumers to wear braces process with varying degrees. With the higher the level of consumer use of braces correction time is shorter.

Finally, on the braces to wear long questions, orthodontic experts pointed out that patients wear braces must be a month to a dental referral and recovery in this referral process, the doctor based on your teeth and the position of the teeth, make the appropriate adjustments to the Quick look at your children have no tooth decay shape of the teeth and tidy, picking braces, the doctor will let you wear a period of time to keep the cage to play to keep you now correct the position of the teeth, so given time depends on the situation.

Children should not use the electric toothbrush

1. Brush over the children oral narrow, large brush will not make the child's teeth is fully clean, but easy to hurt the children's oral. The choice of electric toothbrushes is sure to choose the brush compact.

2. The bristles are strong because our electric toothbrush bristles are no clear criteria restricting electric toothbrush bristles do not meet the national requirements. Too hard bristles damage teeth and gums, too soft brush does not clean. The bristles should be soft plastic fibers, hair-side processing is polished into a spherical, and neither hurt the teeth and gums, without affecting the brushing effect. Therefore, parents should pay attention to the choice of dental equipment electric toothbrushes, the bristles soft and hard, to avoid harm to the child's teeth.

3. Split design is vulnerable if the child of the electric toothbrush is split, then the child during brushing off the brush stuck or swallowed the brush to be dangerous, so children choose the electric toothbrush, be sure to choose integrated design of the toothbrush, and Make your teeth healthy and beautiful enhance the safety factor.

4. Handle inappropriate electric toothbrush with the length of the appropriate bold handle grip designed to reduce about 60% of brushing efforts to reduce oral injuries caused by excessive force, largely to reduce gingivitis and gum the chance of bleeding.

The original ecology of vital pulp porcelain

Innovations in the field of full-ceramic dental technology

A major feature of the original ecology of porcelain teeth with vital pulp is the all-ceramic, such as doctors failed to grasp the vital pulp of all-ceramic technology, often pulp will kill all the preparatory stage of the tooth, making an all-ceramic dental lifeless dead marrow teeth. Pulp is not an afterthought, the health of dental pulp as a dental continuous supply of nutrients, so that the tooth was hard and healthy, so try to protect the pulp that is, tooth nerve, pulp necrosis, dental experience become more brittle , anti-pressure strength is significantly reduced. Unless severe dislocation of dental equipment pulpitis or teeth, can not save the vital pulp, otherwise not easily pulp inactivation.

Vital pulp of all-ceramic dental key is to master the knowledge of tooth anatomy, see the dental pulp will be able to estimate the location, shape, natural teeth when not to pulp worn out, to master the correct method of teeth on the turbine the flow direction, pressure, type of bur should be carefully chosen, can not be ignored, strict protection of the pulp. It is understood that only a small number of big medical surgery hospital medical institutions to carry out the original ecology of vital pulp of all-ceramic technology.

Governance dental problems it is best to whitening and correction into account, then there is no obvious an effect, treatment cycle short? Vital pulp of all-ceramic dental cosmetic dentistry, subjected to grinding, change, governance means the specification of Which populations adapt to scaling the ideal shape of the design requirements, and finally with all-ceramic crown. The biggest difference with the traditional porcelain teeth: the presence of no metal crown with side effects on human health toxic form of color is more natural and realistic.

Which teeth whitening method for you?

Teeth Whitening - ultrasonic scaling

Ultrasonic scaling is the use of scaling to remove tartar and plaque ultrasonic frequency oscillatory effect, the characteristics of efficient, high quality, save time and effort in the correct operation, minimal damage to the tooth surface. Scaling is one of the periodontal basis treatment project, it can remove the risk factors, reduce gingival inflammation, dental appearance and oral comfort while whitening the teeth.

Teeth whitening - teeth blasting

In fact, scaling, including ultrasonic scaling and blasting scaling in two steps. Sandblasting is another method of cleaning teeth, is a further cleaning teeth are made of special salt sand coupled with the high-pressure water. Ultrasonic scaling can only chunk of tartar in the mouth vibration under tea while blasting can be attached to the teeth on the dirt, smoke, dirt and dental equipment food debris clean up, spray the teeth of the sand very smooth and easy to re-deposition of tartar Therefore, scaling and blasting should be combined. Sandblasting can improve the gloss of the teeth, the appearance of the teeth.

Teeth Whitening - Tooth bleaching

By individual teeth bleaching denture placed in the decolorizing agent denture sets of teeth a way. With the growth of drug action time, the color of the teeth will gradually fade white. The advantage is that customers can be treated at home, can decide What are the children's teeth abnormalities the number of pieces you want to bleach teeth and frequency, and each bleaching time, the full course of treatment ended.

Carious deciduous teeth in need of treatment?

Some parents think that the deciduous teeth sooner or later change; the rule does not treat all OK. This view is wrong. Children's milk teeth majority of 11-12 years, in order for these deciduous caries and lack of timely treatment will affect a child's healthy diet and growth and development.

1. Caries of deciduous teeth, the children will be pain when chewing food, or large carious deciduous teeth due to caries and premature loss, etc., can not be food thoroughly chew broken, usually large to swallow, with the passage of time will affect the child's dental equipment gastrointestinal digestion and absorption, thereby affecting the child's physical and mental health and growth and development.

2. Carious primary teeth of infection will affect the health and eruption of the root following the eruption of permanent teeth.

3. Deciduous premature loss of not only affect chewing function, and the eruption of teeth will shift to the missing teeth at the gap of missing teeth smaller, the Retention of oral bad teeth and root corresponding tooth position dislocation eruption will eventually lead to the arrangement of the teeth within the entire arch arrhythmia.

Buckle pain to deal with the best way to root canal therapy

Buckle pain is more common in the treatment of teeth when some teeth without pre-treatment inflammation and infection have been deducted pain, while others buckle pain caused by improper operation during treatment.

During root canal treatment of teeth buckle pain because generally the following:

1. When the root canal with no fixed length of root canal and damage the root tip, in which case the general to the referral of patients when the teeth have deducted pain. If the closure of FC, that buckle pain worse there will be the. Resulted in apical injury and drugs to stimulate the double buckle pain, if there is closure buckle FC referral pain is usually best to first drainage two days and then seal the drug, if simply the root of the expansion lead to apical damage, referral buckle pain can seal drug, sealing the root canal calcium hydroxide iodoform one week. Packets FC deducted pain denal equipment in the drainage time after the closure. Must determine the length of the root canal, otherwise there will be a root canal patency old dressing old buckle pain.

2. Not for root canal preparation, teeth buckle pain, this situation generally required drainage and with the antibiotic treatment, general antibiotic spiramycin metronidazole VC dexamethasone oral medication.

3. Some inactivation of the agent time is too often caused by Tooth crystal whitening Raiders drug-induced apical inflammation buckle pain, this situation must pull the clean pulp, and root canal expansion washed drainage time, the next sealed calcium hydroxide iodoform added to rice flour one week.

How to whiten teeth yellow

The experts believe that the discoloration of the teeth, are generally divided into the coloring of the coloring of exogenous and endogenous, as well as dental factors, such as age-related changes.

Stain was mainly due to smoking, tea, coffee, red wine, cola and other colored drinks, and even drink brown Chinese medicine are likely to make teeth coloring. Endogenous staining mainly refers to the teeth dental equipment of the internal congenital color, such as tetracycline, dental fluorosis. Two different types of teeth coloring, the treatment is completely different. Stain teeth scaling method. The treatment of endogenous coloring of teeth can be bleached, or cover the method of treatment. Based on your description, the situation, consider the major Stain; scaling and polishing sandblasting treatment can achieve good whitening effect. As for bleaching, and some other ways, apply to the treatment What foods easily lead to tooth black of endogenous coloring teeth. Not described in detail here. The nature of hope to you or to a regular hospital, dental or oral specialist hospitals diagnosed, clear coloring tooth can choose the appropriate treatment to lighten the skin.

The causes and treatment of black teeth

1. Heritage of black teeth using teeth whitening method is to solve the problem of not black teeth treatment. Hereditary black teeth yellow teeth can be cosmetic dental crown solution to the problem. "Beauty crown cosmetic dental technology in an emerging cosmetic dental technology popular in Europe, America, Japan and South Korea, stressed on the basis of the traditional porcelain teeth, teeth cosmetic effect, impose professional means misplaced teeth, deformed teeth part dental equipment of the clinical crown , and finally with the beauty crown to be restored. With US teeth extractions, pain, time is short, strong teeth, gums, after many years does not appear black line, etc., so as to achieve a lifelong there to protect teeth effect.

2. Acquired factors make the teeth yellow black are all caused by enamel hyperplasia, such as regular smoking makes teeth coloring to deepen belong Stain, the formation of black teeth. Can take teeth whitening, teeth whitening solution to the black teeth whitening. Teeth whitening teeth whitening technology is the latest popular in the United States, there are over one What are the hazards of dental calculus hundred million people to beautify the teeth with teeth whitening technology, known as the best lunch break beauty items; to make up for the traditional teeth whitening technology insufficient, the whitening effect is more direct and lasting, rapid spread in Europe, Japan and South Korea, China.

The two major dental implant success criteria

1. Patients with alveolar bone constitution, rule out surgical contraindication

In fact, the dental implant process like tree planting, the soil is directly related to the seedlings survived, and dental implant success depends first and foremost on the patient's alveolar bone conditions. (Not suited for the customers of the dental implant, dental implants to conduct physical examination, oral examination, X-ray examination, laboratory tests, understand the dental implant parts osteoporosis dental equipment, thickness, and an important organizational structure, excluding surgical contraindications , the doctor will recommend to select other methods of repair), treatment planning, unplug particularly loose teeth, and root filling of dental caries, treatment of periodontal disease, remove the bad dentures, the changes in and correct the bad occlusion for implant surgery fully prepared.

2. Reliable experts, mature technology

In order to ensure that patients get the maximum success rate Painless tooth extraction technology advantage of dental implants, and should focus on the perfect combination of technology and experts to monitor the whole process of the surgery. Of course, a wealth of experience to become a reference basis.

Blackened teeth are four reasons

Teeth black, hard to say, perhaps in front of the public to bring you a lot of inconvenience in life, as for the teeth will be black? Black teeth mainly caused by the following four reasons.

1. Teeth black outside: long-term habit of drinking coffee, tea, cola and other dark-colored diet will make the teeth yellow, black. Others, such as smoking, chewing betel nut and other bad habits will cause discoloration over time of deep pigment deposited on the surface of the teeth, and even penetrate into the tooth enamel internal.

2. Tooth internal black discoloration of the teeth: the most common to tetracycline class of antibiotics. These drugs affect the dental tissue and cause permanent discoloration of the tooth development process of calcification. Fetus from the mother to eight-year-old children will be the impact of this drug. Teeth in the light turn yellow grayed out entire pieces of the severe cases, teeth becomes black, depending on the degree of discoloration taking this medication depends on the size dental equipment and the length of the take during different. In addition, often semi-synthetic tetracycline for the treatment of severe acne in adolescents or adults teeth generates development has been completed, will cause discoloration, not careless. Others, such as the ingestion of fluoride and other substances in excess can also cause discoloration of the teeth.

3. Cavities make the teeth, gray, and black: Everyone knows termite broken teeth will be black. In addition, the old filling material or improper root canal treatment can also cause tooth discoloration.

4. Aging can also cause black teeth: tooth enamel with age and thinning gradually lost transparency relative to the inner yellow dentin thickness to make the teeth Wisdom is to pull or not pull more yellow, which is why we always want teeth whitening, the Youth Wing in.

How to deal with wisdom teeth the

Wisdom teeth are the up and down about the human oral cavity, alveolar bone on the inside and one each of the four third molars. Four third molars just about 20 years old eruption, the person's physical, psychological development is approaching maturity, they were seen as "the wisdom of the arrival of" symbol, so call it "wisdom teeth. However, due to human evolution of the eruption of many wisdom teeth do not have enough space, therefore, prone to some problems.

Wisdom teeth to the formation of tooth decay: a lot of people because the wisdom teeth overgrown by the less than clean, or clean the thorough implementation, leading to wisdom bore out. In this case, the better the extraction, because if the treatment is filled, it is dental equipment possible because of the difficult to clean once again bore out. Unplug this problem once.

Crooked wisdom tooth: Many people have this experience, is the wisdom teeth is quite crooked, even the oral cavity pressure, or because of long bad, or even buried in the inside, even more painful. Such a situation it is easy to let the filth teeth, cause gum inflammation What is the harm tooth missing of the throat, and many adults continue to attack, or even a fever because of inflammation, it is recommended to unplug the better.

What is the reason of the missing teeth?

1. Congenital absence of teeth: development and embryonic reason, the third molar missing for more than phylogenetic degradation.

2. Teeth: teeth can cause teeth, the form of kinetic energy of the jaw system disorders, and the formation of teeth can lead to central incisor gap between the central incisors.

3. Deciduous teeth: the individual tooth fails to dental equipment fall off for the deciduous teeth, can lead to the following for the eruption of permanent teeth was blocked was an ambush, or dislocation of the eruption of teeth.

4. In addition there are many systemic factors and local disease factors, such as infectious diseases, malnutrition, endocrine factors, vitamin deficiency, cleft lip and palate, mandibular condyle benign hypertrophy, facial hypertrophy psychosis.

5 Ru Jian lack of tooth wear: children to eat the food too soft, so some Rujian teeth less tooth wear, and thus higher arch tooth surface, resulting in premature contact, resulting in the front or side move to the formation of the cross bite.

6. Bad habits: the majority refers to sucking habits, tongue habits, Yaochun habit bite objects habits, stretch jaw habits, poor swallowing habits, unilateral chew habit Porcelain tooth pain causes can cause a variety of malocclusion.

7. Deciduous teeth as early as lost: there will be insufficient clearance, produce crowded dislocation. Lost the guide sprouting role, misplaced and can not be the eruption of permanent teeth eruption.

It is understood that the wrong tooth deformity risk factors is generally hereditary factors and acquired factors.