Spinning off of the earlier thread today about parenting secrets....

... I let LO (14.5m) use an electric toothbrush. He brushes with either DH or I, while we brush our teeth, every morning and night. He LOVES it. He has the exact make/model that we have (we use a different color head, though, so to not switch them!) and I think he likes mimicking us.

I haven't bothered to look up if electric toothbrushes are "ok"..... whatever. It WORKS.

Maybe something to try