How is tooth decay formed?
How is tooth decay formed? Tooth decay is commonly called “worm tooth”, but it is not bitten by a small worm that can be seen by the naked eye. Tooth decay is caused by the bacteria on the surface of teeth. There are a lot of bacteria in our mouth, and many of them accumulate and mix with their metabolites and some components of saliva to form a layer of plaque on the surface of teeth. The bacteria in the plaque feed on sugar and can turn it into acid. Although our teeth are hard, they are easily demineralized by the erosion of acid, and after a long time, cavities will appear on the teeth. Especially the newly grown teeth and stunted teeth are less resistant to this erosion and more prone to caries. According to the results of the 2nd national oral health epidemiological sample survey conducted in 1995-1998, the prevalence rate of dental caries of 5-year-old children’s milk teeth is 76,55%, and the caries is 4,48; the prevalence rate of dental caries of 5-year-old children’s milk teeth in Beijing is 75,56%, and the caries is 4,18; the situation of caries of permanent teeth is that the caries rate of 12-year-old permanent teeth is 45,81%, and the caries rate of 65-74-year-old children is 64,75%. Therefore, it is very important to prevent “caries from childhood”.
What are the dangers of tooth decay?
What are the dangers of dental caries? When you get caries, you may not have symptoms at first. Gradually, you will feel toothache when you eat, and you will not dare to chew with the affected tooth. If children chew with only one side of their teeth for a long time, it will cause asymmetric development of both sides of the face, and the face will be big on one side and small on the other. If the toothache is so often that the child cannot eat properly, it will cause malnutrition and affect the normal development of the body. If the caries further develops to the abscess of the root tip, on the one hand, it may affect the permanent teeth that are growing and developing at the root tip of the milk teeth, causing some problems of the permanent teeth; in addition, the abscess of the root tip is also a chronic lesion, in which the bacteria can flow to all parts of the body with the blood, and when the body resistance is low, it may cause the disease of the heart, kidney, joints and other important organs. If the caries occurs in the front teeth, causing the residual crown and root of the front teeth, or missing, it will also affect the pronunciation and appearance of the children, and even may cause the inferiority complex of the children and affect their physical and mental development.
Benefits of dental scaling
As we all know, tooth decay and periodontal disease (often manifested as bleeding from brushing, loose teeth, etc.) are the two main oral diseases that plague human beings, both of which are mainly due to plaque.
Because many people do not have good oral hygiene habits, they do not brush their teeth in the morning and evening or do not brush their teeth according to the correct method, the food residues in the mouth and the inherent flora in the mouth will be combined together, and the gums bleeding, teeth loosening and falling off, etc. will be the culprit. For plaque and tartar that have already formed, brushing can’t do anything about it. The main purpose of periodontal scaling is to remove the plaque, tartar and pigment deposited on the surface of the teeth at the gum junction in order to remove the local curative factors, stop the development of gum damage and restore the state of health.
Scaling, not only maintains oral hygiene, but also removes stains from the tooth surface and restores the natural color of the teeth. However, it should be noted that unlike bleaching, scaling does not remove the pigment from the inside of the teeth and does not make the teeth white in the true sense.
What are “six-year-old teeth”? How to protect the “sixth age teeth”?
What are “Sixth Age Teeth”? How to protect the “sixth age teeth”? The first permanent molars behind the milk molars are also called “sixth-age teeth” because they erupt around the age of six. The newly erupted “sixth-aged teeth” are not very strong, and the unpolished occlusal surface is uneven, the sulcus is deep, easy to accumulate food residues and plaque, and not easy to clean, so they are eroded by the acid produced by bacteria, and are easy to develop caries. We can use the method of sulcus closure to level the deep sulcus of the occlusal surface before the occurrence of caries, so that the food residue and plaque are not easy to accumulate and achieve the effect of caries prevention. In addition, because the “six-age teeth” erupt early and grow quietly behind the last milk molar, they are often mistaken as milk teeth, and the caries is not treated in time at the early stage, and when it becomes painful, it has been destroyed quite seriously, and even has to be extracted in the teenage, which is regrettable for the whole life. In order to avoid this situation, you should take your child to the hospital for dental examination regularly. When you can’t tell whether the problem is with a baby tooth or a permanent tooth, you should go to the hospital and ask the doctor to help solve the problem.
What should I do if my new tooth is bruised?
What should I do if I bruise my new tooth? Don’t panic if a serious accident like this happens! If a tooth has been knocked out of its socket, make sure to find the tooth that has come out immediately. Remember: pinch the crown of the tooth and find cool boiling water or tap water nearby to rinse off the stains stuck on the surface of the tooth, but never brush the root surface of the tooth with a brush or anything else. Then put the cleaned tooth back into the socket and go back to the doctor. If you are not sure, soak the tooth in fresh cold milk or put it in your mouth under your tongue and get to the dentist without a minute’s delay. It is not right to hold the tooth in your hand and wrap it in paper to dry it out. The shorter the time the tooth is out of the body, the greater the chance of success after reimplantation, and it is best to get to the dentist within 30 minutes. A tooth that has been bruised or broken, even if it is just a crack, also needs to be examined in the hospital. 8 years old is the age of high incidence of trauma to permanent front teeth, when the roots of newly grown incisors are not yet fully developed, and timely treatment after trauma is especially important.
What are the dangers of wisdom teeth?
Wisdom teeth are the third molars of human beings, which usually erupt at the age of 18 to 25. As the human jaw bone degenerates and becomes smaller without corresponding changes in the size and number of teeth, the last erupting third molars are often blocked due to lack of space for eruption, which can be manifested as partial eruption, mal-eruption, or complete buried blockage. The incidence of wisdom teeth obstruction is high, and its harm is mainly manifested as follows.
1. Recurrent pericoronitis. The soft tissue around the crown of the blocked wisdom tooth forms a blind pocket with the tooth, causing the accumulation of food and bacteria, and when the resistance decreases, the appearance of pericoronitis is inevitable. The general anti-inflammatory treatment can treat the symptoms but not the root cause, so pericoronitis will recur.
2.Tooth decay. It is easy to accumulate food residue between the malpositioned wisdom tooth and the second molar, and it is not easy to clean, usually several months can form caries and directly destroy the tooth tissue.
3.The obstructed wisdom teeth often cannot establish normal occlusal relationship with the teeth of the opposite jaw, which can lead to the symptoms of popping of temporomandibular joint, painful opening of mouth and night grinding for a long time, which has a great impact on the physical and mental health of young adults.
4. There is evidence that some obstructed wisdom teeth are the foci of some trigeminal neuralgia.
The jawbone that holds the teeth continues to degenerate and become smaller, so wisdom teeth obstruction is the inevitable result. Removal of obstructed wisdom teeth does not have any adverse effect on the functions of chewing and speech, plus it is the most effective way to treat obstruction, therefore, it is recommended to remove the obstructed wisdom teeth that cause the above mentioned hazards as early and decisively as possible.
The best time for dental implants
The term “veneer” is “denture” and can be divided into immediate, removable, fixed, complete, and implant denture depending on the timing of the denture. Except for the immediate denture, the timing of each denture is related to the remaining roots, crowns, intact teeth, hard and soft tissues in the mouth, etc.
1. Immediate denture is processed and finished before the extraction, and it is worn 30 minutes after the extraction to protect the extraction wound and prevent the adjacent teeth from tilting toward the gap.
2.Activated denture, generally about 3 months after the last extraction (the time will be changed according to the specific situation), the prerequisite is that the other conditions in the mouth meet the requirements of the activated denture.
3.Fixed denture, generally is also in the last extraction about 3 months (residual roots, remaining roots, etc. should be changed according to the specific situation), the prerequisite is that other conditions in the oral cavity meet the requirements of fixed denture.
4.Full denture, also about 3 months after the last extraction (residual roots, remaining roots, etc. should be changed according to the specific situation), the prerequisite is that all other conditions in the mouth meet the requirements for a full denture.
5, implant denture surgery, the corresponding dental implants to be implanted about 2 months after the extraction, the extraction of the alveolar bone in the wound to heal completely, and other local and systemic conditions must also meet the requirements of the implant denture, the subsequent surgery also requires the corresponding time and conditions.
The types and applications of porcelain dental restorations
Porcelain is currently the best fitting and most realistic oral restoration.
Porcelain restorations are divided into metal and metal-free porcelain.
Metal porcelain is divided into precious metal and non-precious metal porcelain two techniques. Precious metal porcelain metal crowns generally contain gold, palladium and other precious metals. It has two major advantages: one is the color, especially porcelain teeth and gum contact is very beautiful, no green, gray; second is the porcelain and metal bonding is very good, there is rarely chipped porcelain situation.
Metal-free porcelain refers to porcelain teeth without metal crowns, is all-porcelain teeth. Realistic color.
What is the life span of various dentures?
It is worth noting that almost all people who wear dentures have a concern about how long they can wear their dentures. This depends on the type of denture.
There are three types of dentures commonly used: fixed dentures, movable partial dentures and full dentures. Fixed dentures can generally be used for a longer period of time, but in special cases, their life span can be drastically shortened. Such as porcelain teeth in the process of chewing too much force, it is easy to make it fracture and damage, in addition, if the fixed dentures related to the individual tooth decay, or periodontitis and tooth loosening, then this denture life will also be shortened.
The general life of removable partial dentures is between 3 and 5 years, and the way to extend their life is to maintain oral hygiene. The life span of full dentures is between 5 and 7 years. Because they are made of plastic materials and a mixture of plastic and metal materials, they are not wear-resistant. After extraction, progressive resorption of the alveolar bone head occurs, and a large gap is created between the abutment of the full denture and the oral mucosa, which reduces the fit and makes it easy to fall off, affecting chewing. Therefore, you should consider replacing the full dentures.
Tooth extraction in time to set teeth
Many people think that after the extraction of the affected teeth, as long as the wound heals, everything will be fine. This is incorrect because after the extraction of the affected tooth, a gap is left in the middle of the tooth row, and if it is not filled in time, then the tooth opposite to the extracted tooth will be removed. The teeth will elongate significantly due to the lack of antagonistic force, and the teeth on both sides of the gap will also tilt toward the gap. This inevitably creates a large gap between the teeth.
This gap is easy to embed food, and periodontal disease or caries will appear after a long time. If permanent teeth are extracted in adolescence and not set in time, more teeth will be displaced and disorder of tooth alignment will occur, causing lifelong pain.
Theoretically, after tooth extraction, the alveolar bone loses the stimulation of physiological chewing function and will gradually shrink, and it takes about 2 months to reach a stable level. It is generally considered that this is the most appropriate time to set the teeth.
Some crowded teeth do not require veneers because there is no place for them after extraction. The “end teeth”, or third molars, do not need to be restored after they are extracted.
What is dental implant restoration?
An artificial tooth root (dental implant) is surgically placed in the tooth socket of the missing tooth area, and an upper denture (crown) is attached to the implant, which looks and functions like a natural tooth.
Currently, dental implants can be used for restoration of missing teeth, whether they are single teeth, multiple teeth or complete teeth.