the child's first orthodontic examination at 7-8 years old, after upper and lower front teeth eruption is made that it is beneficial. During this period, the problems with the development of Jaws and permanent teeth that will last can be noticed. An early diagnosis to be made in the future which is more difficult to be treated with skeletal disorders can be easily treated, situations that require a tooth extraction can be avoided. Furthermore, the cost of treatment also shortened the treatment time can be reduced.
