钴铬全金属冠

Features & Clinical Advantages
— High mechanical hardness: Strong bending resistance and deformation resistance, not easy to bend or deform, suitable for posterior teeth and long-span bridge restorations.
— Excellent mechanical strength: High strength and elastic modulus, large-span multi-unit bridges are not easy to fracture, suitable for populations with heavy masticatory forces.
— Reliable retention: High metal margin strength, margins are not easy to wear down, good seal, reducing gingival inflammation, halitosis, and dental caries.
Precautions
— Metal presence causes slight artifacts in X-ray and CT imaging.
— There remains a very low probability of slight black gingival line appearing at the margin position (better than nickel-chromium, inferior to zirconia ceramics).
— Aesthetics are weaker than porcelain-fused-to-metal (PFM) and all-ceramic restorations, not prioritized for high anterior aesthetic demands.