An orthodontic evaluation during routine dental examination is very important for children. In many cases, early treatment of orthodontic problems can make subsequent phases much easier, less expensive, or may even eliminate the need for further treatment. Many parents think that one has to wait until all of the baby teeth come out and the permanent teeth are in before starting orthodontic treatment, however, many problems – such as lack of space or crossbites – can be corrected early while there are still baby teeth present. The results can be much more stable when done early. The muscle tone of the lips, cheeks, and tongue are still in a states of flux in a young child. The muscle tone usually doesn’t become set for life until all of the permanent teeth come in. That gives a little window of time that the size of the jaw can be changed and the result will be relatively stable, whereas, doing it later in will have a high rate of relapse.