For most of human history, straight, well spaced teeth were the norm, not a luxury that required years of metal and elastic bands. Archaeologists routinely lift ancient skulls from the ground and find ...
"Human children grow at a uniquely slow pace by comparison with other mammals. When and where did this schedule evolve? Have technological advances, farming and cities had any effect upon it?
It’s not surprising that many people fear the dentist. Replacing a tooth often requires invasive surgery and implanting a titanium screw into a patient’s jawbone, then waiting months for that to ...