Which of the following is true?
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
Dental implants have which of the following fibers?
Principle fibers
Alveologingival fibers
Circular group
Alveologingival fibers and circular
all of them
Which of the following is false?
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
The periodontal ligament is vascularized laterally via fenestrations in the alveolar bone. Apically, the gingival vascular supplies PDL.
T/T
T/F
F/T
F/F
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
