Answer:
This is an interesting thought experiment.
I am going to assume we are still human with similar heads/faces and digestive systems to what we have currently.
It would depend on what kind of tooth you picked.
With all incisor teeth we would be unable to grind up tough food and would have to swallow everything just as is on the end of the fork when you put it in your mouth (assuming you eat with a fork).
With all molar teeth we would not be able to bite through food very well. So cutting up food before you put in your mouth would become important.
The next issues are digestion. Chewing and breaking the food into small pieces is important in freeing up nutrients from food and making it digestable.
With a good knife and and a blender we could likely get around the digestive issues associated with not chewing our food or trying to eat large mouth fulls of food at once.
If you had a good sharp stone and another grinding pair of stones you could also achieve the desired consistency for food to provide energy and nutrients.
If you didn’t have tools it would be very hard get enough good food into your body. People still starve in 2017- there would be plenty more staving if you had to eat like this.
I also do not think that we would be able to produce speech as we do currently. We still would be able to speak but the sounds would be different.
The face would change. Particularly if we had molars everywhere.
Interesting idea. This would likely be evolutionary difficult/impossible.
Step-by-step explanation: