Phossy jaw is seen in chronic: (A) Sulphur poisoning, (B) Chlorine poisoning, (C) Fluirine poisoning, (D) Phosphorus poisoning
Answer is D. Phossy jaw It is a type of osteomylitis of the jaws observed in chronic phosphorus poisoning. Frequent inhalation of fumes for many years may cause necrosis of the lower jaw in the region of a decayed tooth. It is common among workers, in phosphorus industries, who are exposed to phosphorus fumes Ref: FORENSIC MEDICINE AND TOXICOLOGY Dr PC IGNATIUS THIRD EDITION PAGE 432