How does tooth enamel last a lifetime?
Tooth enamel is the hardest substance in the human body, but, until now, no one knew how it managed to last a lifetime. The authors of a recent study conclude that enamel’s secret lies in the imperfect alignment of crystals.
Tooth extraction aftercare: A how-to guide
Tooth extraction involves completely removing a tooth from the mouth. People may require tooth extraction for many reasons, ranging from tooth decay to crowded teeth.