CAD-CAM Expanders: the future of digital orthodontics

Leone introduces the first RPE screw series designed for a fully digital workflow. With over 50 years of expertise and millions of clinical cases, Leone combines tradition and innovation to deliver precision-engineered expanders for every therapeutic need.

Through the 3DLeone Designer software, clinicians and labs can design customized frameworks starting from STL files of upper and lower arches. The structures are then produced by Selective Laser Melting (SLM) technology, resulting in a high-precision sintered framework that fits perfectly into the expander’s squared or transversal slots and is permanently laser welded.

This digital synergy ensures an exact fit, efficient force transmission, and long-term reliability for both dental, hybrid, and bone-borne appliances.

Performance, precision, and reliability

• Digital workflow integration – full compatibility with 3DLeone Designer for fast, guided design of customized appliances.
• High mechanical strength – made of biomedical stainless steel with a resistance exceeding 60 kgf, about 50% higher than standard RPEs.
• Optimized geometry – squared or embedded slots ensure the correct orientation and complete transmission of expansion forces to teeth and/or TADs.
• Dedicated strengthened swivel key – mandatory for CAD-CAM expanders to guarantee proper activation and full transfer of expansion forces.
• Wide range of models – from Anatomical and Rapid CAD-CAM Expanders to Tooth-Borne versions including Rapid, Easy Access, Lower Arch, Leaf, and Leaf Self designs, covering every clinical requirement.