Cavity free kids and keeping it simple. Kids who enjoy going to the dentist and consistently belong to the "No Cavity Club." That's what we parents want, right?
After age 3 about 90% of the cavities are in 4 locations. Between the molars in the 4 corners of the mouth. If I could get parents to spend 10 seconds each evening flossing these 4 spots, it would nearly eliminate all the cavities I have to fix. And I do mean 10 seconds!
Here is how I did it. At story time each evening the kids brought a book and I brought some floss. Each in turn would lay on the couch with head in my lap, mouth open and looking up at me. It is an easy view of upper and lower teeth and I am not chasing a bobble-head. Zig zag the floss between the molars so it does not snap as it goes past the tight spot. Snap it back out. Four corners and you are finished. After a couple nights practice you will discover this takes about 10 seconds, really! A hug or tickle and a question about the book they brought might make it 30 seconds.