Dental deformity is the most common oral disease among children. According to statistics, the incidence rate is about 40-60%, and has an increasing trend.
is one of the most common oral diseases that are plaguing children.
In addition to unsightness, because it is not easy to clean, teeth are prone to caries and periodontal disease. Some children have a heavy burden of thinking, and also have a sense of inferiority and mental disorders, which affect physical and mental health.
Therefore, we should pay enough attention to the deformity of teeth and jaw, and do early prevention and treatment, which is not only conducive to the normal growth and development of children, but also conducive to the prevention and treatment of caries and periodontal diseases
Generally speaking, the best correction period is when the replacement of primary teeth is completed (11-12 years old).
but some jaw deformities, such as “covering the earth and the sky”, should be corrected immediately once found
There are four kinds of orthodontic methods: preventive orthodontic, interdiction orthodontic, general orthodontic and surgical orthodontic.
is the most commonly used one in clinic.
The movable orthodontic appliance is a kind of orthodontic appliance which can be taken and worn by patients without sticking to teeth. It is mainly composed of plastic base, stainless steel wire bent retainer and orthodontic accessories.
movable orthodontic appliance is easy to make and low in cost, but simple in structure and poor in orthodontic efficacy, so it is difficult to complete complex orthodontic treatment.
Fixed orthodontics is a kind of Orthodontics which can not be taken and worn by patients themselves. It uses brackets and rings fixed on teeth and ligation of arch wire to complete the orthodontics.
There are many kinds of
fixed appliance. At present, square wire appliance and straight wire appliance are commonly used.
With the development of economy and the improvement of living standard, more and more adults are required to have orthodontics.
However, it is slow and difficult for adults to correct teeth compared with children. The main reasons are: 1. The growth and development of adults stop, the reconstruction of alveolar bone has been completed, the teeth move slowly, the treatment time needed is long, and it is easy to relapse, and the time needed to maintain is long 2. Adults often suffer from oral diseases, such as caries, periodontal disease, temporomandibular joint disease and so on, which complicates the treatment. If the force is not appropriate, it will aggravate the periodontal damage, so the treatment technology requirements are higher.
although there are many adverse factors for adults to correct their teeth, they have strong desire and can cooperate with doctors well to achieve satisfactory results