29. 30 development of periodontium

Question 1 of 10

1

Which of the following statements is false?

Select one of the following:

Cementum, periodontal ligament and alveolar bone function and develop as an interdependent unit
Alveolar bone develops before cementum
SHH is a soluble inductive factor affecting cell differentiation
Development goes coronal to apical in direction
Cell rests of Malassez comes from the enamel organ

Explanation

Question 2 of 10

1

What did the Ten Cate experiment regarding tooth buds implanted in the backs of rats reveal about periodontal development?

Select one of the following:

Alveolar bone cells were generated
There was less tritium thymidine in the pulp cells and odontoblasts due to high proliferation of these cells
PDL and cementum come from the dental follicle
Surrounding tissue, PDL, cementoblast, and pulp cells were observed.
none of the above

Explanation

Question 3 of 10

1

Which of the following is true?

Select one of the following:

First cementum is cellular cementum
Outer cell layer is inductive
Interactions between the follicular cells and intermediate cementum leads to the production of cellular cementum
Signalling factors come from the dental papilla
none of the above

Explanation

Question 4 of 10

1

Which of the following is true about HERS?

Select one of the following:

Before occlusion, fibers are perpendicular to root surface
Synthesis of intermediate cementum by the outer cell layer of HERS
Involved in odontoblast differentiation
Synthesis and differentiation
None of the above

Explanation

Question 5 of 10

1

The periodontal ligament uses type 4 collagen. The basal dental lamina and alveolar bone uses collagen types 1 and 3.

Select one of the following:

T/T
T/F
F/T
F/F

Explanation

Question 6 of 10

1

Which of the following is false?

Select one of the following:

Alveolar bone forms by mesenchymal condensation within the dental follicle
Lamellar bone becomes woven bone via action of the cutting cones
Cementum is appositional
Acellular cementum is thick
Parallel fibers are present in non-erupted teeth

Explanation

Question 7 of 10

1

What was the point of that experiment where teeth were grown in the eyes of rats?

Select one of the following:

To give the finger to animal rights' groups
The pulp graft demonstrated development of PDL
The dental papilla was shown to generate bone
The papilla and follicle both must be present for formation of PDL, bone, and tooth
Alveolar bone generation requires the presence of both cementum and PDL

Explanation

Question 8 of 10

1

The reduced enamel epithelium attaches to the enamel surface via desmosomes. Eruption leads to fusion of REE and oral epithelium

Select one of the following:

T/T
T/F
F/T
F/F

Explanation

Question 9 of 10

1

Which of the following is true?

Select one of the following:

The attachment between REE and enamel surface is a secondary epithelial attachment
The internal basal lamina attaches to the gingiva
Local expression of inflammatory mediators and cytokines stimulate proliferation of the inner layer of the REE and oral epithelium
The demarcation between gingival and sulcular epithelium is that sulcular has linear basal layer that becomes convoluted
Reduced enamel epithelium is attached to the unerupted enamel surface

Explanation

Question 10 of 10

1

Passive eruption involves the apical migration of the gingival margin. This naturally occurs with age

Select one of the following:

T/T
T/F
F/T
F/F

	Created by Liz Maas almost 8 years ago

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29. 30 development of periodontium

Question 1 of 10

Which of the following statements is false?

Select one of the following:

Explanation

Question 2 of 10

What did the Ten Cate experiment regarding tooth buds implanted in the backs of rats reveal about periodontal development?

Select one of the following:

Explanation

Question 3 of 10

Which of the following is true?

Select one of the following:

Explanation

Question 4 of 10

Which of the following is true about HERS?

Select one of the following:

Explanation

Question 5 of 10

The periodontal ligament uses type 4 collagen. The basal dental lamina and alveolar bone uses collagen types 1 and 3.

Select one of the following:

Explanation

Question 6 of 10

Which of the following is false?

Select one of the following:

Explanation

Question 7 of 10

What was the point of that experiment where teeth were grown in the eyes of rats?

Select one of the following:

Explanation

Question 8 of 10

The reduced enamel epithelium attaches to the enamel surface via desmosomes. Eruption leads to fusion of REE and oral epithelium

Select one of the following:

Explanation

Question 9 of 10

Which of the following is true?

Select one of the following:

Explanation

Question 10 of 10

Passive eruption involves the apical migration of the gingival margin. This naturally occurs with age

Select one of the following:

Explanation