Problem:

I want to know what are the effects of not using your teeth to grind foods but preparing it before eating with blending and grinding them into a liquid.

Here I am not talking about any weight loss or fitness industry prepared drinks. I mean the ordinary raw and cooked foods like meat, vegetables, cereals, and fruits that one would normally eat in classic meals.

Question: Would this decrease of work done by teeth and digestion system have positive or negative health effects?

Please explain.