Colorado Kids Pediatric Dentistry is located in the Highlands Ranch town center. Check out their website for more information along with the schedule of when to drop off the candy.
By the way if you are looking for a dentist for your child, I highly recommend Colorado Kids Pediatric Dentistry! Jack's first visit to the dentist went amazingly well (for both of us). The entire staff was so kind, and they do an awesome job of making it a fun experience!