A dental arch expander is used to create room for permanent teeth to erupt in a natural position. It is a common early pediatric orthodontic treatment used today. Using a dental arch expander can eliminate or effectively minimize the need for braces when a patient gets older. We recommend using a dental arch expander to help prevent problems in the future. Patients in their pre-teens tend to be more resistant and self-conscious than younger patients, so starting orthodontic treatment earlier may help prevent problems or resistance in the future.