Cementum Flashcards
What are properties of cementum
Covers root dentine
Similar in structure to bone
Provides attachment for some periodontal fibres
How is cementum similar in structure to bone
Same collagen matrix and lamellar arrangement
What are the different types of cementum
Cellular and Acellular
What cells does cellular cementum contain
Cementocytes
When is cellular cementum formed
After acellular cementum (secondary cementum)
Where is cellular cementum present
In the apical part of the root and in furcation regions
What cells do acellular cementum contain
No cells
When is acellular cementum formed
First formed (primary cementum)
Where is acellular cementum present
Usually adjacent to dentine
What is the alternative classification of cellular cementum
Cellular intrinsic fibre cementum
Does cellular intrinsic fibre cementum contain Sharpey’s fibres
No
What role does cellular intrinsic fibre cementum play in tooth attachment
None
What is the alternative classification for acellular cementum
Acellular extrinsic fibre cementum
Does acellular extrinsic fibre cementum contain Sharpey’s fibres
Yes - collagen fibres from PDL
Where is acellular extrinsic fibre cementum found
Present on cervical 2/3 of roots