Everyone wants to have neat white teeth. However, stomatological research has found that a considerable number of people have crowded teeth, too large gap between teeth, staggered teeth eruption, or asymmetrical and uncoordinated upper and lower teeth. These teeth are collectively called "malocclusion" or "malocclusion" in medicine. Teenage malocclusion not only affects facial beauty, but also affects the chewing function of teeth. Therefore, many parents urgently demand corrective treatment (hoop teeth).

The best correction age of different malocclusions is also different. In deciduous period (3~5 years old) and mixed period (6~ 12 years old), general malocclusion, such as individual teeth dislocation or individual teeth eruption, does not need immediate correction, so we should continue to observe and correct bad oral habits.