This discussion as to the doubtful necessity of teeth to civilized man, is not from the view point of "a bald and toothless future," nor is it to imply that I do not believe in their utility, comfort and beauty; on the contrary, I believe that the full number of perfect teeth in their normal position, with healthy environment, gives the best balance, the best harmony and the most satisfaction from every view point, but what civilization may evolve in the future, seems so many ages ahead that it hardly need concern us at the present time. Nature is so kind, however, that she has fixed on us a wide margin of variation from our present standard of normal, and still preserves to us a good state of health.
This is true both in anatomy and physiology, otherwise the callings of surgery and medicine would not exist, in fact, perfect
FLETCHER MH. TO WHAT EXTENT ARE TEETH NECESSARY TO CIVILIZED MAN.. JAMA. 1905;XLV(6):377–381. doi:10.1001/jama.1905.52510060013002b