Dalyrimple Goes Wrong by F. Scott Fitzgerald

Though the newspaper account of the burglary failed to mention the false teeth, they worried him considerably. The picture of a human waking in the cool dawn and groping for them in vain, of a soft, toothless breakfast, of a strange, hollow, lisping voice calling the police station, of weary, dispirited visits to the dentist, roused a great fatherly pity in him.

Trying to ascertain whether they belonged to a man or a woman, he took them carefully out of the case and held them up near his mouth. He moved his own jaws experimentally; he measured with his fingers; but he failed to decide: they might belong either to a large-mouthed woman or a small-mouthed man.