Under normal circumstances, when the front teeth bite together, the upper front teeth are wrapped around the outside of the lower front teeth, such as the opposite (i.e., the lower front teeth are wrapped around the outside of the upper front teeth), the medical term is “anterior teeth together”, “anti-clinically”, commonly known as “ground “, also known as “pocket tooth”. Because of the “enamel” affects the child’s aesthetics, psychology, and health. It should be corrected as soon as possible. If you have relatives who have “enameled teeth”, there is a possibility of recurrence and aggravation with growth and development after orthodontic treatment, so it is necessary to treat them in stages. The best time for orthodontic treatment is between the ages of 3 and 5. At this time, simple movable braces can be used in a very short period of time to receive good results. The majority of milk teeth will develop into permanent teeth without orthodontic treatment, and the symptoms will gradually worsen. After correction of milk teeth, the likelihood of permanent teeth becoming “encrusted” decreases, and even if it occurs, the symptoms are less severe and the treatment is simpler. The treatment is relatively complex and may involve a variety of braces, including removable braces, functional braces, fixed braces, and extra-oral appliances, which are designed to alter the growth of the bone using its growth potential. Early permanent teeth Refers to adolescents whose teeth have just been replaced, when most of the development of jaws and teeth has been completed, mostly fixed braces are used for treatment by changing the position of teeth. If the skeletal deformity is more serious, orthodontic treatment plus orthognathic surgery is required in adulthood. Adults Adults with mild skeletal deformities can be treated with fixed braces to change the position of the teeth and disguise the treatment. For adults with severe skeletal deformities, only orthodontic treatment with orthognathic surgery is possible.