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.
Teeth are an important part of physical appearance for many people, and they want to show a bright white smile. However, a new study reveals that many tooth whitening products can damage the teeth.