How to remove bad odor from porcelain-fused-to-metal crowns

To eliminate bad odor from porcelain-fused-to-metal crowns, maintain good oral hygiene by brushing regularly, using dental floss to clean between teeth, and rinsing with a fluoride mouthwash. If the unpleasant smell persists, consult a dentist for an examination, as it may be caused by ill-fitting crowns or gingivitis, which require professional treatment such as crown adjustment or anti-inflammatory therapy. Additionally, chewing aromatic foods like lemon or chewing sugar-free gum may temporarily mask the odor.