Maxillary expansion is a technique used to correct discrepancies in the upper jaw due to inadequate development. Because the degree of underdevelopment and structural anatomy varies from person to person, treatment plans should be individualized. Today, digital applications not only replace many conventional approaches in our field but also help us get easier and more precise results. By evaluating teeth, soft tissue, and bones in a virtual environment and by using special programs and production techniques, it is possible to design more effective customized bone-supported expansion devices. During the presentation, digital planning approaches and their impact on clinical practices will be explained.