What are the side effects of nickel-chromium porcelain-fused-to-metal (PFM) dental crowns?

As people age, many experience tooth loss and consider dentures as a treatment option. However, they often worry about potential side effects. What are the side effects of nickel-chromium porcelain-fused-to-metal (PFM) crowns?

What Are the Side Effects of Nickel-Chromium PFM Crowns?

Nickel is a known allergen; therefore, patients with preexisting sensitivities or allergies may experience allergic reactions after receiving nickel-chromium alloy PFM crowns. Common symptoms include discomfort between the teeth and gums. Allergic individuals should exercise caution when selecting restorations to avoid adverse effects on oral health. Nickel-chromium PFM crowns are metal-based, and metals possess inherent staining properties. With prolonged wear, chemical reactions may occur within the metal substructure, causing metal ions to leach into surrounding gingival tissues—resulting in darkening or discoloration along the gingival margins.

Nickel-chromium PFM crowns are prone to dental calculus (tartar) accumulation. If not adequately removed during routine brushing—or if professional dental cleanings are neglected—this can lead to gingival discoloration, bleeding, and inflammation. Thus, meticulous oral hygiene is essential following placement of such crowns. Additionally, ill-fitting or poorly adapted nickel-chromium PFM crowns may chronically irritate the gingiva, potentially increasing the risk of gingival tumors—a serious and potentially hazardous complication.

When seeking dental care, consult a qualified dentist at an accredited dental clinic who can evaluate your individual oral condition and recommend the most appropriate crown material. We hope this information has been helpful!