...Elaborate please? What story? If you tell me the name of the assignment I can probably get it for you.
Oedipus Rex, also known by its Greek title, Oedipus Tyrannus, or Oedipus the King, is an Athenian tragedy by Sophocles that was first performed around 429 BC. Originally, to the ancient Greeks, the title was simply Oedipus, as it is referred to by Aristotle
I am sorry, I don't completely understand, could you give me more infromation so that I can help.
Answer: No. It isn't an example of ethos.
Explanation:
Ethos refers to an argument that's based on the credibility of the person that's making the argument.
Ethos simply means establishing the authority to speak on a particular object subject. It's the persuasion and the argument whereby the knowledge, good moral character and the credibility of the speaker is shown.
In this case, the example given isn't an example of ethos because dentists in this case is a broad term and therefore does not give credibility from a particular dentist or probably a dental research.