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Apposition, Maturation, and Root Development

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

A primary tooth can begin to erupt into the oral cavity with the formation of:

a)

Hertwig Epithelial Root Sheath (HERS)

b)

Reduced Enamel Epithelium (REE)

c)

Cervical Loop

d)

Tomes Process

2.

The movement of the nuclei of the inner enamel epithelial cells (IEE) is called:

a)

Reciprocal induction

b)

Amelogenesis

c)

Dentinogenesis

d)

Repolarization

3.

Which parts of the tooth are secreted in successive layers during the apposition stage?

a)

Enamel, dentin, and cementum

b)

Enamel and dentin

c)

Enamel and cementum

d)

Dentin and cementum

4.

The process by which ameloblasts begin the appositional growth of enamel matrix is called:

a)

Dentinogenesis

b)

Maturation

c)

Amelogenesis

d)

Reciprocal induction

5.

(Fill in the blank) shapes the root of a tooth and determines the number of roots a tooth will have.

a)

Epithelial Rests of Malassez

b)

Hertwig Epithelial Root Sheath (HERS)

c)

Cervical Loop

d)

Reduced Enamel Epithelium (REE)

6.

Alveoli are tooth sockets that are formed from the mineralization of the ectomesenchyme of the:

a)

Dental Sac

b)

Dental Papilla

c)

Enamel Organ

d)

PDL

7.

An odontogenic cyst that forms from the REE after the crown has completely formed is called:

a)

Concescence

b)

Odontoma

c)

Nasmyth Membrane

d)

Dentigerous cyst

8.

The outer cells of the dental papilla are induced by (fill in the blank) to differentiate into odontoblasts.

a)

Cementoblasts

b)

Basement membrane

c)

Preameloblasts

d)

Ameloblasts

9.

Cells from the distintigrated HERS that are located in the mature periodontal ligament are called:

a)

Epithelial Rests of Malassez

b)

Preameloblasts

c)

Odontoblasts

d)

Cementoblasts

10.

(Fill in the blank) results from the reduction in the quantity of enamel matrix.

a)

enamel hypocalcification

b)

enamel hypoplasia

c)

amelogenesis imperfecta

d)

dentinogenesis imperfecta