Lorne Malvo is a fictional character on the TV show Fargo. He is a hitman who assumes the identity of a dentist. It is never fully explained how Malvo became a dentist, but it is clear that he is not a licensed professional. He uses his assumed identity to gain access to his victims and to avoid suspicion.
There are a number of possible explanations for how Malvo became a dentist. He may have purchased a fake degree or stolen the identity of a real dentist. He may also have learned about dentistry through books or online courses. Whatever his method, it is clear that Malvo is not a skilled dentist. He makes several mistakes while performing dental procedures, and he is eventually caught by the police.