Semi-Painless Dentistry is a dentistry that is only seen in the Season 1 opening sequence.


It was later replaced, ironically, with Candy Most Dandy in the Season 2-early Season 20 opening. Very little is known about this dentistry as it's never seen beyond the Season 1 opening. However, during Last Exit to Springfield, Lisa has a braces-related check-up at the Painless Dentistry. Furthermore, the sign reads: "Painless Dentistry; Formerly Painful Dentistry". Since the titles are so very similar, it's possible that the two shops are the same, but just with a different name, or a direct competitor.