Liz Maas
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Liz Maas
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32 Periodontal Ligament

Question 1 of 5

1

Which of the following is true?

Select one of the following:

  • Mandibular molars account for about one third of the total root surface area

  • The PDL is widest in the elderly because it increases with age

  • Most of the nerves of the PDL are myelinated

  • Impacted teeth have the lowest average PDL

  • PDL width is widest midroot

Explanation

Question 2 of 5

1

Dental implants have which of the following fibers?

Select one of the following:

  • Principle fibers

  • Alveologingival fibers

  • Circular group

  • Alveologingival fibers and circular

  • all of them

Explanation

Question 3 of 5

1

Which of the following is false?

Select one of the following:

  • Cell rests of Malassez express cytokeratins C18 and C19

  • PDL has a fibroblast population

  • PDL gets remodeled

  • There are osteoblasts in the PDL

  • None of the above

Explanation

Question 4 of 5

1

The periodontal ligament is vascularized laterally via fenestrations in the alveolar bone. Apically, the gingival vascular supplies PDL.

Select one of the following:

  • T/T

  • T/F

  • F/T

  • F/F

Explanation

Question 5 of 5

1

Which of the following is false?

Select one of the following:

  • Conventional flap surgery leads to attachment via hemidesmosomes of the gingival tissue to the exposed root surface.

  • Guided tissue regeneration results in formation of cellular cementum.

  • Conventional flap surgery results in long junctional epithelium

  • Dentin is necessary for periodontal regeneration

  • The stem cell population of the PDL is pluripotential

Explanation

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