If dental care of your kids is something that's worrying you...then I've something that can be of some help. Most of the time kids do not swoosh properly, as a result of which food particles remain sticking to the teeth. Here is FireFly Mouth Swoosh that uses a light-up bottle cap to tell kids when to stop swooshing.

Just fill the cap with mouth wash and pour the contents into the mouth...and start swooshing. After 30 seconds you'll see the cap changing its color, indicating that it's time to stop and spit. Isn't great?
With this you won't have to keep standing with the kid while brushing for he'll naturally swoosh properly to see the glowing cap.
Via; StrangeNewProducts