Comment by dennis_jeeves2

Could be the case.

But the explanation of crowded tooth being ascribed to evolution is completely false. If one dug around literature even a teeny bit one realizes that many hunter gather groups even today have a a full set of tooth perfectly aligned in the jaw. Dentists, Weston A. Price about a century back and more recently John and Mike Mew (father/son so the same last name) come to mind who tell a different story from the mainstream evolutionary explanation for crowded tooth.