]> 2026-07-31T07:52:04+00:00 WBR0714 0 en Arsenic Arsenic poisoning is not associated with Burton's lines. Manual thermometers Mercury in manual thermometers would not cause Burton's lines. Old paint Chronic exposure to lead in old paint can cause lead poisoning, which is characterized by reduced cognitive abilities, gastrointestinal problems, and Burton's lines. Pesticides Many pesticides (organophosphates) are potent neurotoxins, functioning by inhibiting the action of acetylcholinesterase (AChE) in nerve cells. They would not be responsible for Burton's lines. Zinc Zinc is not associated with Burton's lines. Biochemistry Pathology Pharmacology William J Gibson (Reviewed by Serge Korjian) A 7-year-old boy is brought to the physician by his parents for loss of appetite, abdominal pain, lethargy and constipation that has become worse over the past several weeks. The parents have received a notification that their son’s performance in school has deteriorated during this same period. On physical examination, the physician notes thin, grey-blue lines visible along the margin of the patient’s gums. The patient’s condition is most likely caused by exposure to which of the following? C General Principles 2020-10-28T01:28:56Z 2459150.5617593 WBR0714