Teeth help a person use their mouth to eat, speak, smile, and give shape to their face. Each type of tooth has a name and a specific function.
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.
New research finds that brushing the teeth three or more times a day significantly reduces the risk of atrial fibrillation and heart failure.
Xylitol is a lower-calorie sugar substitute with a low glycemic index. Some research suggests that it may also improve dental health, prevent ear infections, and possess antioxidant properties.