Dentists and oral surgeons perform tooth extractions for many reasons. The issue may be a painful wisdom tooth or a tooth that has been badly damaged by decay. In some cases, a dentist will remove a tooth to make space for dental prosthetics or braces.
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.
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.