The Banana Splits in: When You Don't Brush Your Teeth

There's a short animated film by Hanna-Barbera called 'The Banana Splits in: When you don't brush your teeth'. The only thing I could find on it was a few production cels.

I also read somewhere that Hanna-Barbera released a series of educational PSAs sometime in the 70s, so this very well could be one of them.