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Gold granuloma after accidental implantation
F R Scott1, A P Dhillon, J F Lewin
1University Department of Histopathology, Royal Free Hospital School of Medicine, London.
Journal of Clinical Pathology
|November 1, 1995
Summary
A rare case of granulomatous reaction to gold dental alloy in a 66-year-old man, presenting 20 years after implantation, highlights delayed hypersensitivity to dental materials.
Area of Science:
- Oral pathology
- Immunodermatology
- Dental materials science
Background:
- Granulomatous reactions are inflammatory responses characterized by the formation of granulomas.
- Gold dental alloys are commonly used in restorative dentistry due to their biocompatibility and durability.
- Delayed hypersensitivity reactions can occur with various materials, including dental alloys.
Observation:
- A 66-year-old male presented with a florid granulomatous reaction on the oral mucosa of his lip.
- The reaction appeared approximately 20 years after accidental implantation of a gold dental alloy.
- Energy dispersive analysis confirmed the presence of a high nobility gold dental alloy at the site.
Findings:
- This case represents a rare instance of florid granulomatosis associated with gold dental alloy.
- The significant delay in presentation suggests a complex immune response.
- Components of the gold alloy may have acted as haptens, triggering a delayed hypersensitivity reaction.
Implications:
- This case underscores the potential for delayed-type hypersensitivity reactions to dental materials, even after prolonged periods.
- Understanding the immunogenic potential of dental alloys is crucial for long-term patient outcomes.
- Further research into the mechanisms of delayed hypersensitivity to metallic dental components is warranted.