Gum

Believe it or not, the American Dental Association recommends chewing gym with xylitol after meals (in addition to normal brushing and flossing). They said even my 2 year olds should do it. We tried it. Evelyn swallowed her first (half) piece, but did great on her second try. Sylvia is a pro. Not sure if we will do it often, but it kept them occupied in the car.