system
Given the following post, respond as if you're commenting on Reddit:
human
Why are teeth individual and not one single piece of enamel?

It seems like it'd cut down on plaque related issues.
gpt
If you were to damage your tooth to the point where it died and you only had one large tooth,  it would be very detrimental to your survival.  As it stand losing any single tooth is not a very large hindrance in terms of survival.

Having problems with plaque in between teeth is more of a modern occurrence.  Diets high in simple sugars along with a high rate of people getting braces leads to plaque problems.  If you were to eat a more traditional diet (think caveman) with larger gaps in between your teeth you would have very little problems with plaque to the point where brushing your teeth would be unnecessary.