Medically reviewed by Brian T. Luong, DMD Tooth sensitivity, also known as dentin hypersensitivity, causes tooth pain in ...

As the enamel erodes and more dentin is exposed, the teeth may appear yellow. Cracks and chips. The edges of teeth become more rough, irregular, and jagged as enamel erodes.

Dentin is the part of the tooth that's under the enamel. Softer than enamel, it's much more sensitive to acid damage. Tooth decay will speed up from this point on if you don’t see a dentist.

Tooth sensitivity, also called dentin hypersensitivity, occurs when a tooth's inner dentin layer and the tubules within it get exposed, most often due to the loss of protective enamel at the crown ...

Teeth also consist of layers called enamel, dentin, cementum, and dental pulp. Enamel . Enamel covers the crown or the outside of the tooth and protects it from physical and chemical injuries.

As tooth development progresses in a process of ultimate cellular engineering, the cells of the six aforementioned tissues – enamel, dentin, pulp, cementum, ligament and bone – multiply, specialize ...

Under the enamel is dentin which is even more yellow and sensitive,” says Rhode. If you struggle with sensitivity, have a look at our guide to what causes toothaches for more information.

For durability, however, the secret lies in the enamel, dentin and pulp – our focus in this discussion. Dentin and pulp are the body and heart of the tooth. Anna Koroleva/iStock via Getty Images ...