Combined works Metal bracket: Nickel-free (Dentauurum GM 380), Titanium (DentauurumRematitan) Precision dental engineering attachments: Preci VERTIX, Stég, Preci HORIX, OT-CAP, Variokugel, CEKA-REVAX Telescopic crowns: Nickel-free primary / – secondary, Titanium primary / – secondary, golden primary / – secondary