Burtonian line is seen in?
Ans. is 'b' i.e., Lead o Burtonian line is blue line, which is seen on upper gums in lead poisoning.o Similar blue line (but not called burtonian line in these cases) is also seen in poisoning with Mercury (Hg), Copper (Cu)y Silver (Ag), bismuth (Bi), andiron (Fe).
Mercury
Lead
Arsenic
Zinc
Forensic Toxicology - Concepts, Statutes, Evidence, and Techniques