Cementum Flashcards
Cementum: Properties
From dental sac
Avascular
Hard tissue
Parafunctional Stage
Development during root formation
Functional Stage
Development that starts at occlusion and throughout the life of the tooth
Cementogenesis
Formation of cementum.
Hertwig disintegrates -> undifferentiated cells become cementoblasts (((cementocytes)))
Periodontium
Cementum
Alveolar Process
PDL
Sharpey Fibers
Collagen ligaments from PDL inserted in cementum + alveolar process
Cemental Lacunae + Canaliculi
No nerves!
Acellular Cementum
[primary]
First, slower
Sharpey’s = mineralized
Cellular Cementum
[secondary]
Later, faster
Sharpey’s = artially mineralized
CEJ Relationships
3 Overlap
1 Meet
2 Gap
Arrest Lines
“Tree rings” repair lines
Reversal Lines
“scalloped” repair lines
Cementicles
Spherical mineralized cementum on root surface / PDL
Cemental Spurs
@ CEJ
mistaken for calculus
Hypercementosis
Excessive production of cementum
