Lynn reminds us that while John forgets names and faces, he never forgets people's teeth.
Panel 1: Jean comes in and reminds John that Miss (ahem!) Moreau is here; John asks "Who?"
Panel 2: Jean's reminding him that Miss Moreau is the blonde with the Playboy figure and skintight wardrobe does nothing to jog his memory. Perhaps if he weren't trying to figure out what Jean's deal was at the same time, he'd be able to focus on what his patients look like.
Panel 3: Jean's next tactic is to remind him that the woman has anterior hypoplasia and a crossbite.
Panel 4: He smiles broadly and says "Oh, HER!!!" in recognition while Jean grimaces and rolls her eyes.
Summary: While it's good that John remembers what's wrong with his patients, I don't know that I'd actually want a dentist who only saw me as a cluster of symptoms like he does. I guess Rod can't win, can he? Either his avatar is a leering jerk who treats his assistants like a harem or is so focused on his job, he forget that his patients are people.