Question

Both the crown and root of a tooth is covered by a layer of bony hard substance. It is called

Answer 1

both crown and root are covered by dentine and at crown position it's also covered by enamel which is hardest substance in our body

Answer 2

In dentistry, crown refers to the anatomical area of teeth, usually covered by enamel. The crown is usually visible in the mouth after developing below the gingiva and then erupting into place. If part of the tooth gets chipped or broken, a dentist can apply an artificial crown.