"Does Cobalt-Chromium Alloy Porcelain Dental Crown Affect MRI Scans?"

Effects of Cobalt-Chromium Alloy Porcelain Teeth on MRI

Cobalt-chromium alloy porcelain teeth generally have an impact on magnetic resonance imaging (MRI), as they belong to the category of metal-fused porcelain crowns containing a metal base. This metal base exhibits magnetic properties that interfere with X-ray radiation, thereby affecting MRI scans. The inner crown of cobalt-chromium alloy porcelain teeth is made of cobalt-chromium alloy, which is highly corrosion-resistant and typically does not cause blackening of the gums. Compared to noble metal porcelain crowns and all-ceramic crowns, cobalt-chromium porcelain crowns are more affordable and easier to accept. In contrast to nickel-chromium porcelain crowns, cobalt-chromium porcelain crowns offer higher safety due to their higher melting point attributed to the higher chromium content.

Overall, cobalt-chromium alloy porcelain teeth are considered safe, reliable, reasonably priced, and stable in performance. However, they may not be aesthetically perfect, with a tendency to appear bluish under certain lighting conditions at night, and there is a potential for metal allergies. Given their significant impact on head scans, zirconia all-ceramic crowns are more commonly used in clinical practice. Zirconia crowns are known for their durability, aesthetic appeal, thinner profile, and reduced need for tooth preparation.