New research finds that brushing the teeth three or more times a day significantly reduces the risk of atrial fibrillation and heart failure.
There are several possible causes for white spots on teeth, including dental fluorosis, enamel hypoplasia, poor dental hygiene, and eating too many acidic or sugary foods.
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.