Perhaps you’re smart enough to realize that this clue isn’t talking about load-bearing bridges that span a gap. Maybe you’ve dismissed the popular card game. You’ve still got to actually know the medical term for what a dentist–that other sort of bridge maker–studies: PERIODONTICS. This one’s tricky (and satisfying) all the way down.
- Francis Heaney, The American Values Club Crossword, 2/22/17