Personally, I wouldnt feed Iams to my dogs. I wouldnt feed any food carried by Walmart or Target.. they're all just too low grade for me. We feed Nature's Recipe from Petsmart. Petco has it too, but its generally cheaper at PM. I'd consider NR a middle grade food. No corn, fillers, byproducts...

We rarely brush our dogs' teeth, but if we notice some plaque-build up, J will scrape it off with a pick.