My four year old is good at brushing; I give her teeth a quick brush myself if she's had lots of sweets, but mostly she does it on her own. My concern now is flossing. Her mouth is too small for me to stick my fingers in there and really teach her how to do it; I give her a piece of floss to play with and run between her front teeth just to get her used to the idea of flossing. Any suggestions for how or when I should go about teaching flossing? Am I waiting too long? Also, can anyone recommend a good mouthwash for children? Any advice on children's dental hygiene would be appreciated. Thank you!