Exam 20: Enamel, Dentin, and Pulp

Hundreds of odontoblasts are damaged when restoration is prepared and placed within a tooth. Sclerotic dentin forms in response to the trauma.

Once formed, the often stained primary cuticle can be removed by (select all that apply):

The enamel rod is somewhat parallel to the dentinoenamel junction (DEJ) because it runs all the way from the DEJ to the surface of the tooth.

The reduced enamel epithelium secretes the primary enamel cuticle.

Following mild trauma, which type of dentin is formed?

A sign that enamel production is completed is when the

The primary abnormality seen in pulp is pulp stones.

Each of the following is true of the cells of the inner enamel epithelium (IEE) during the bell stage EXCEPT one. Which one is the EXCEPTION?

Tooth development is first seen at the incisal edge or cusp tip.

After the ameloblast secretes the primary enamel cuticle it is called the reduced enamel epithelium because it becomes flattened and blends with outer enamel epithelial cells.

The bulk of the dentinal material is called primary dentin or regular dentin. An area of higher crystalline content immediately surrounding the dentinal tubules is called sclerotic dentin.

The dental papilla is derived from the ectoderm. It determines the shape of the developing crown.