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Worksheets

TBL International

Total questions: 15

Worksheet time: 8mins

Name
Class
Date
1.

At the age of nine years, the mandibular permanent first molar has its distal contact with which of the following teeth?

a)

First premolar

b)

No distal contact

c)

Second deciduous molar

d)

Second premolar

e)

Second premolar

2.

Which of the following terms may be used to indicate the dentin formed first in the tooth?

a)

Granular dentin

b)

Hyaline dentin

c)

Mantle dentin

d)

Primary dentin

e)

Radicular dentin

3.

Dentin formation is most likely to be initiated by which of the following parts of the enamel organ

a)

Inner enamel epithelium

b)

Outer enamel epithelium

c)

Reduced enamel epithelium

d)

Stellate reticulum

e)

Stratum intermedium

4.

The highest quantity of inorganic content is likely to be present in which of the following tissues related to teeth

a)

Cementum

b)

Dentin

c)

Enamel

d)

Periodontal ligament

e)

Pulp

5.

Which of the following is the last succedaneous tooth to erupt?

a)

Maxillary canine

b)

Mandibular canine

c)

Maxillary first premolar

d)

Mandibular first premolar

e)

Mandibular third molar

6.

Which of the following sequence of eruption of permanent teeth is normally seen in the maxilla

a)

1,6,2,4,3,5,7,8

b)

1,6,2,3,4,5,7,8

c)

6,1,2,4,3,5,7,8

d)

6,1,2,3,4,5,7,8

e)

6,2,1,3,4,5,7,8

7.

The roots of which of the following permanent tooth are normally completely formed by age ten years?

a)

Lower canine

b)

Lower second molar

c)

Lower second premolar

d)

Upper canine

e)

Upper central incisor

8.

Located in the midline, between two central incisors

a)

Taurodontism

b)

Hypodontia

c)

Mesiodens

d)

Talon cusp

9.

This condition called

a)

Fusion

b)

Gemination

10.

This condition is called

a)

Fusion

b)

Gemination

11.

This condition is called

a)

Amelogenesis imperfecta

b)

Dentinogenesis imperfecta

c)

Dysplasia dentin

d)

Tetracycline stain

12.

This condition is called

a)

Dilaceration

b)

Hypercementosis

c)

Fusion

d)

Concrescence

e)

Gemination

13.

A 13 years old boy presents to his general dental practicioner with a broken upper incisor tooth of one day duration. He complains of pain in the tooth when drinking cold water. On examination the enamel of the incisal edge has been chipped off, and the underlying dentin exposed. What is the caused of the pain?

a)

Fluid in dentinal tubule is moving

b)

Fluid in dentinal tubule leaked to the dentine

c)

Enamel layers press the dentinal layers

d)

Odontoblast cells in pulp chamber is expanded

e)

Odontoblast cells in pulp chamber press the pulp wall

14.

Root formation starts when dentine and enamel in the crown are formed. HERS is the architect of the root. What are the cells can be found in HERS?

a)

Inner epithelial enamel, outer epithelia enamel, stratum intermedium

b)

Inner epithelial enamel, outer epithelia enamel, reticulum stellata

c)

Inner epithelial enamel, reticulum stellata, stratum intermedium

d)

Outer epithelia enamel, reticulum stellata, stratum intermedium

e)

Inner epithelial enamel, outer epithelia enamel

15.

Dental lamina will developed into 3 tissues of tooth germ. The tissue that developed from ectodermal will become...

a)

Enamel

b)

Dentin

c)

Pulp

d)

Cementum