1, affecting the normal development of teeth.
For example, the protrusion of the lower dental arch (including the sky), because the lower dental arch hinders the forward development of the upper dental arch, the length of the maxilla is underdeveloped, and the mandible is overdeveloped due to the forward thrust of the maxilla. As a result of this interaction, mandibular protrusion and central facial depression were formed.
2, affect oral health
Tooth growth is uneven, food is easily embedded between teeth, food residue is easy to rot and ferment over time, dental caries is easy to occur, and periodontal tissue is also prone to inflammation.
3, affect the digestive function
If the teeth grow irregularly, the occlusal relationship will be abnormal, it will be inconvenient to chew food, and the food will not be chewed carefully. If food is swallowed too fast, it will increase the burden on the gastrointestinal tract, which will easily lead to gastrointestinal diseases and hinder health over time.
4, affect the pronunciation function
Uneven teeth reduce the contact area between the upper and lower teeth or make them not contact at all, which will not only reduce the chewing function, but also affect the pronunciation function, resulting in unclear pronunciation, especially inaccurate pronunciation of teeth.
5, affect the appearance
Protruding dental arch or crowded teeth disorder will make the face show open lips and teeth. The malocclusion is characterized by prominent mandible and prominent lower lip, which makes the upper lip deflate, like an old lady with flat mouth without teeth.
6, affect mental health
Children with irregular teeth are often ashamed to show their teeth in front of friends, afraid to speak and laugh, which leads to introversion, which in turn affects communication with people and is not conducive to the development of normal mental state.
7. The principle of correction
The main mechanism of dentition crowding is that the number of teeth is irregular, the number of teeth is relatively large but the number of bones is relatively small. Therefore, the principle of correction is to achieve the coordination of the number of teeth and bones by increasing or decreasing the number of teeth, thus creating conditions for the alignment of dentition, that is to say, to align the crowded teeth, it is necessary to create gaps for the alignment of teeth.
1. Increase bone mass, and expand the length and width of dental arch through various appliances to achieve the purpose of increasing bone mass, that is, to obtain a gap, but the gap obtained by this method is limited.
2. By slicing, reducing the tooth diameter or reducing tooth extraction to obtain clearance, thus reducing the number of teeth. The gap obtained by reducing the diameter is also very limited, which is easy to cause secondary caries of teeth and is rarely used in clinic. The method of reducing tooth extraction can obtain a large number of gaps and become the main correction method for moderate and severe crowding in clinic.
No matter how to correct the crowding by increasing the bone mass or reducing the number of teeth, the crowded teeth must get enough clearance before they begin to bear stress, which is an important condition for successful correction.
8, preventive measures
① Whether children have bad habits of sucking fingers, licking their tongues and biting their lips, parents should patiently guide and correct these habits;
② In the process of changing teeth, whether there are signs of dislocation and eruption of permanent teeth, or whether there are phenomena such as delayed eruption of permanent teeth, it is safer to take children to the dental department for routine examination during the process of changing teeth, and the doctor will make suggestions according to the situation;
③ Pay attention to children's food composition, and give them as many foods rich in cellulose as possible, so as to give full play to their chewing function and stimulate the development of jaws. If parents pay attention to the above points and actively assist their children in prevention, the development trend of dentition may stop or decrease to a certain extent, but in many cases, especially in the case of congenital or genetic factors, it is difficult to control the generation and development of dentition simply by preventive methods. So most dentition is irregular.