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Oral Histology

 November 11, 2013 |  admin |  Lecture series, Faculty Development Program Series
Questions
Answer
Matrix formation in cementum is faster in
Cellular cementum, owing to presence of cementoblast and
cementocytes
The cementocytic process interconnect with each other through
gap junctions
incremental lines of Salter are rich in
Osteopontin
The first formed cementum is
Acellular extrinsic fibre cementum
The type of cementum that has no role in attachment is
Intrinsic fibre cementum
What is cellular mixed stratified cementum
In the apical region and the furcations, acellular extrinsic and
cellular intrinsic fibre type of cementum presents in alternating layers,
which is called cellular mixed stratified cementum
The varied origin of mixed cementum can be best demonstrated by
Polarized light, that show the different orientation in
different shades
The proteins absent in acellular extrinsic fibre cementum are
Dentin sialoprotein, fibronectin and tenascin. And deficient in
lumican, versican, decorin, biglycan and fibromodulin
In the cervical region of tooth, loss of reduced enamel
epithelium leads to
Formation of afibrillar cementum
The number of fibers in acellular extrinsic fibres is
30,000 per sq mm

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