PDL Flashcards
Involves in SYNTHESIS and DEGRADATION of collageb
Fibroblasts
Principal cells of pdl
Fibroblasts
Ability to achieve exceptionally high rate of turnover of collagen
Fibroblasts
Cells that have
Well developed cytoskeleton
Prominent actin network
Fibroblasts
Provides strong mechanical attachments to adjacent cells
Adherens junc
Connection between intracellular actin and extracellular fibronectin
Fibronexus
Concavities or depressions in the bone made by clasts cell. Osteoblasts and cementoblast are located
Howships lacunae
Cementoprogenitor/ osteoprogenitor
Cementoblasts
Cementoclasts
Osteoblasts
Osteoclasts
Cells inside cementum. It forms cementum
CementoBlasts
Cells which resorb cementum
Loc in howships lacuna
Occur when there is excessive force applied during orthodontic tooth movt
Cementoclasts
Found in the peripheral part of pdl adjacent to bone
Osteoblasts
Observed when there is highly observed phases of bone resorption
Osteoclasts
Remnants of HERS
Epithelial cells - epithelial rests of malassez
Pdl
Eo:
F organ:
F cells:
Ectomesenchyme
Dental follicle
Fibroblasts
Epithelial cells can form _ if stimulated
Dental cysts
Epithelial cells release _ for maintenance and function
EGF molecules
Source of new cells for pdl
Undifferentiated cells or progenitor cells
Production of new cells must be balanced by
Migration of cells out of pdl
Cell death or apoptosis
Physiologic cell death
Apoptosis
4 cells in the pdl
Fibroblasts
Cementoprogenitor/osteoprogenitor
Epithelial cells
Undiff or progenitor cells
Predominant collagen fibers in pdl
Type 1 and 3
Provides tensile strength to the pdl
Type 1 and 3 collagen fibers
Fibers arranged in definite fiber bundles
Collagen fibers
Fibers within the bundle are not parallel but
Interwoven
