Cobalt-chromium dental material Wirobond® M+

CoCrCoCrMofor dental bridges

Product
Milled cobalt-chrome discs for CAD/CAM dental restorations (frames, full-anatomical crowns and bridges, abutments and bars). Wirobond® M+ is provided as re-densified milling discs to ensure dense structures for precise prosthetic fit.

Key features

• Simultaneous 5-axis milling ensures consistent precision of fit across units
• Compatible with veneering using commercially available ceramics with matching thermal expansion
• Each disc is re-densified to achieve a dense, high-lustre finish and >99% freedom from porosity
• High mechanical strength across all span sizes, suitable for a wide range of indications
• Corrosion-resistant and biocompatible material
• Nickel- and beryllium-free composition

Indications

• Frameworks for partially and fully veneered restorations up to 16 units with up to four pontics
• Fully anatomical crowns and bridges up to 16 units with up to four pontics
• One-piece abutments, bars and occlusally screw-retained bridges

Extras

• Fully anatomical abutments available

Available documents (titles)

• Wirobond® M+ — Processing information for CAD/CAM-produced restorations
• BEGO CAD/CAM Product Catalogue (Valid from November 2025)
• BEGO Interface overview (Valid from: April 2026)

Technical characteristics / specifications

• Chemical composition (in %): Co 63.8 · Cr 24.8 · W 5.3 · Mo 5.1 · Si 1.0
• Type (according to ISO 22674): 4
• Density: 8.6 g/cm³
• Modulus of elasticity: 235 GPa
• 0.2% proof stress (Rp0.2): 415 MPa
• Tensile strength (Rm): 965 MPa
• Hardness (HV 10): 290
• Coefficient of thermal expansion (RT – 500°C): 14.4 x 10⁻6 K⁻1
• Coefficient of thermal expansion (RT – 600°C): 14.6 x 10⁻6 K⁻1