Zippy eats raw pretty regularly. He gets a nice variety of meaty meat and organ, but I would say the majority of his bone content comes from chicken and occasionally rabbit. The chicken bones keep his back teeth nice, but not his canines or the teeth right behind them. He also chews on bullysticks alot, but they don't seem to make much difference. Does anyone have any recommendations for what might help scale those front teeth without causing tooth damage? btw Zippy is an 18lb Manchester