First of all, you should choose a regular hospital or clinic for orthodontic treatment (that is, orthodontics), because some doctors don't know how to mess around and brag to you that their treatment time is shorter than others and the effect is good. Generally speaking, orthodontics takes a year or so, and if some people are seriously ill, it will take more than two years, so it is obviously impossible to do it in a few months, so "orthodontics" can easily lead to loose teeth.
Secondly, if you plan to treat it, your doctor will do some tests according to your condition (he will help you, such as taking a mold, taking a panoramic photo and so on). ), and then help you design a treatment plan suitable for you according to your condition, including whether to pull out a tooth, which tooth to pull out, corrective steps and so on.
Generally speaking, orthodontics in regular hospitals is safe and will not cause any harm to health. On the contrary, if your dentition is uneven and crowded, it is easy to cause dental caries and pain or periodontitis because it is not easy to clean. Of course, if there is no crowded dentition, you can choose not to treat the teeth, but the teeth will often affect the appearance. Some people will show their teeth too obviously, they will not be able to control their mouths or the lower teeth will bite the gums (lingual gums) behind the upper teeth. These are all bad phenomena, and teeth will be hurt more easily than ordinary people.
Whether you need to have your teeth extracted depends on your personal situation. Most buckteeth need to be extracted, but if your back teeth are sparse and there are many gaps, there is no need to extract teeth. The specific situation still depends on the situation, and the doctor will have a result after analysis.
Generally speaking, correction won't hurt, but just wearing the appliance (you call it Kouga) will make you uncomfortable, or you will get oral ulcers, but this is only temporary and will disappear after a while. Orthodontics is scientific, and every time a doctor adds strength to a patient, it won't make the patient feel pain. Many of our children are teenagers and have never experienced obvious pain.
The time for correction is generally about one year to one and a half years, which takes a long time. The length of time mainly depends on your dentition and whether you cooperate with the doctor during the treatment. Generally speaking, it takes only a few months to arrange teeth neatly, but there are still a series of things to be done later, such as the adduction of buck teeth and the closure of tooth extraction gaps. After your treatment is successful, you still need to keep it, that is, wear a retainer (there are many kinds of retainers to choose from, which is another story). Generally, the retainer should be worn for one year, sometimes longer. Of course, some people want to keep it for life, that is, wear the retainer for life.
If you have any questions, you can ask me, or go to a regular hospital and ask the doctor directly.