Video Lessons
Why Do We Have Crooked Teeth When Our Ancestors Didn’t
Ancient skulls have been found to have perfectly straight teeth, in contrast to the dental issues commonly seen in modern humans such as crooked teeth and impacted wisdom teeth. Scientists believe that this shift is due to changes in lifestyle and diet, particularly the decrease in jawbone size and the introduction of processed foods. This hypothesis is supported by studies on animals and variations in tooth crowding across global populations.