Can blackened gums around porcelain-fused-to-metal (PFM) crowns be treated?
Gingival discoloration typically results from bacterial biofilm formation on tooth surfaces or around the teeth. Various bacteria adhere to this biofilm, and thus the color of the gingiva is essentially determined by the pigments produced by these adherent microorganisms. So, is there a solution for blackened gums around porcelain-fused-to-metal (PFM) crowns?
Can blackened gums around PFM crowns be treated?
Yes, blackened gums around PFM crowns can be treated. Black discoloration of the gingiva often indicates heavy metal or nonmetal poisoning. Lead poisoning is relatively common and may manifest as a characteristic “lead line”—a dark bluish-gray or black linear deposit along the gingival margin, approximately 1 mm wide. Mercury poisoning may also cause similar discoloration, presenting as blue or gray-black lines on the gums. The upper and lower anterior teeth are particularly susceptible sites. Alternatively, phosphorus poisoning or “gingival melanotic bands” may also contribute to black pigmentation.
Dental calculus (tartar), stains, and plaque firmly adhere to both tooth surfaces and gingival tissues. When the junction between the gingiva and periodontal tissues becomes compromised, gingivitis develops—often leading to gingival bleeding. If oral hygiene is neglected, gingival recession may ensue, potentially resulting in tooth mobility and eventual loss—even of otherwise healthy teeth.
It is recommended to visit a professional dentist every six months for professional dental cleaning to remove calculus, plaque, and other irritants. Additionally, oral supplementation with vitamin C and other essential vitamins can effectively help prevent gingival bleeding. After professional cleaning, meticulous daily brushing using proper technique is essential. Maintaining good oral hygiene habits in daily life helps preserve a healthy oral environment and enables timely prevention of various oral diseases. We hope this information proves helpful to you.
