A Case of Tooth Extraction in a Patient with a History of Secondary Methemoglobinemia

Abstract

：We present a case of tooth extraction for a 25-year-old patient with a history of secondary methemoglobinemia at 6 months of age caused by Acetaminophen.The tooth extraction was performed under local anesthesia using 2 ％ lidocaine with 1：80,000 epinephrine in an operating room equipped with respiratory support.As a result, the treatment was successfully completed and we found no significant signs of secondary methemoglobinemia such as cyanosis, dyspnea and rise in blood methemoglobin concentration.