Fossils of tiny, jawless marine animals reveal tooth structures sharper than sharks or steel, forcing scientists to rethink ...
One of a blacktip reef sharks’ top teeth as seen under a scanning electron microscope. CREDIT: Maximilian Baum (HHU) / Steffen Köhler (HHU). Get the Popular Science daily newsletter💡 Breakthroughs, ...
Root canals treat infected or damaged pulp tissue to save the tooth. Success relies on patient-specific factors—not just technical skill. Technology like microscopes and 3D imaging improves outcomes.
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