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.
الرئيسية2019
2019 نوفمبر
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.
A toothache is a painful annoyance, especially at night. Getting a toothache at night can make falling asleep or staying asleep very difficult.
New research finds that brushing the teeth three or more times a day significantly reduces the risk of atrial fibrillation and heart failure.