Etiology: exposure to various types of heavy metals such as arsenic, bismuth, platinum, lead, silver, copper, mercury
Transmission: NA
Characteristics: lungs and liver are target organs; agryria presents as slat-gray or bluish discoloration; lead presents as lad-line stain; bismuth presents as a thin blue-black line
Dental Implications: Blood tests must be ordered to determine a definitive diagnosis
Treatment: depending on the definitive diagnosis
Prognosis: depending on the diagnosis, it is usually good