The Composition of Teeth To understand why teeth can’t regenerate, it's essential to look at their structure. Teeth are composed of three main layers: Enamel: The outermost, hardest part of the ...

Teeth a and b on the diagram show the herbivore's teeth. Carnivores have teeth which are shaped to slice and rip the meat they eat. Teeth c and d on the diagram show the carnivore's teeth.

A woman claims her jawline changed after wisdom teeth removal. Experts explain how impacted teeth can affect facial symmetry and overall jaw structure.