1. Which of the following is true of cellular cementum ?

A. Seen at the coronal portion of the tooth
B. Forms after the eruption of the tooth
C. Forms during root formation
D. Formation is a slow process

Answer:B

Cellular cementum
• Formed after acellular cementum
• Most of it is formed after reaches occlusal plane tooth reaches occlusal surface
• Covers the apical third of root half of the root
• Contain cementocytes
• May be completely or partially calcified

2. Intermediate cementum is______?

A. Highly defined fibrillar zone near CDJ
B. Highly defined cellular zone near cemento – dentinal junction (CDJ)
C. Poorly defined zone near cemento-dentinal junction
D. Both a and B

Answer:C

Intermediate cementum
• Hyaline layer of Hopewell Smith
• Poorly defined zone near the cemento-dentinal junction of certain teeth that appears to contain cellular remnants of Hertwig’s sheath embedded in calcified ground substance.

3. Which of the following is true of cellular cementum ?

A. Seen at the coronal portion of the tooth
B. Forms after the eruption of the tooth
C. Forms during root formation
D. Formation is a slow process

Answer:B

4. Which of the following is least mineralized ?

A. Cementoid
B. Cellular cementum
C. Incremental line
D. Acellular cementum

Answer:A
Cementoid:A thin unmineralized layer present on the surface of developing cementum. Also known as precementum and uncalcified cementum.

5. Trauma or excessive occlusal forces causes_____?

A. Hypertrophy of cementum
B. Hyperplasia of cementum
C. Resorption of cementum
D. None of the above

Answer:C

6. At the CEJ cementum overlaps enamel about______?

A. 65 to 70%
B. 60 to 65%
C. 55 to 60%
D. 70 to 75%

Answer:B

7. If overgrowth of cementum does not improve the functional qualities of cementum, it is termed as_____?

A. Hyperplasia
B. Hypertrophy
C. Hypoplasia
D. Excementoses

Answer:A

Cementum hyperplasia
• If the overgrowth occurs in nonfunctional teeth or it is not correlated with increased function it is termed as Hyperplasia

8. Which of the following is a rare occurrence______?

A. Cementum overlaps enamel
B. Enamel overlaps cementum
C. Enamel meet cementum at a point
D. Both never meet

Answer:B

9. Secondary cementum is generally confined to_____?

A. Middle third of the root
B. Cervical third of the root
C. Apical third of the root
D. No secondary cementum forms

Answer:C

10. Which of the following is true of cellular cementum ?

A. Seen at the coronal portion of the tooth
B. Forms after the eruption of the tooth
C. Forms during root formation
D. Formation is a slow process

Answer:B