❓ why
Why do our teeth have enamel but no feeling?
Human bodyDentistry
Quick Answer
Tooth enamel is a hard mineral layer that protects the tooth, and it contains no living nerves. Sensitivity comes from deeper layers when enamel wears away.
The Full Story
Enamel is the hardest substance in the human body, made mostly of hydroxyapatite crystals. It covers the crown of the tooth and shields the softer dentin and pulp beneath it. Because enamel itself has no nerves or blood supply, it cannot feel pain. When decay, erosion, or cracks expose the dentin, teeth can become sensitive to hot, cold, or sweet foods.
Key Facts
1.Tooth enamel is the hardest substance in the human body
2.Enamel has no nerves or blood supply
3.Sensitivity increases when dentin is exposed
YouTube Angle
Suggested video title for this topic:
"Your teeth’s hardest layer is also the one that can’t feel a thing."