The Arum milling machine is widely recognized. in the dental market due to its excellent and. precise milling capacity, in addition to its. compatibility with intraoral scanners. Number of Axis 5-Axis. Indications Inlay and Onlay, Crown, Coping, Crown Bridge, Coping Bridge, Dental Bar, Screw-Retained Bridge, Customized Abutment, Hybrid Abutment ...