Modified and customized appliances are designed to meet unique treatment goals that require non-standard orthodontic solutions. These appliances may incorporate specialized wires, acrylic modifications, hybrid designs, or digitally fabricated components such as 3D metal printed bands and expander framework. Custom appliances are fabricated with close attention to clinical specifications, offering flexibility, precision, and repeatability. They are ideal for complex cases where traditional appliance designs require adaptation or advanced digital manufacturing.