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Dr. Anil BS,VIVA Pearl Blog’s first contributor |
ü Methods of removal of inorganic constituents – decalcification.
ü Methods of removal of organic constituents- incineration/ organic
chelation .
chelation .
ü Excess of calcium in the dentinal tubules is referred to as –
sclerotic dentin.
sclerotic dentin.
ü First convexity of doubly curved dentinal tubules is directed
towards- apex.
towards- apex.
ü S shaped dentinal tubules.
i.
starts at – right right angle from pulpal surface.
starts at – right right angle from pulpal surface.
ii.
Ends at DEJ & CEJ –
perpendicularly.
Ends at DEJ & CEJ –
perpendicularly.
ü Dentinal tubules at riit tips and incisal edges – almost straight.
ü Dentinogenesis first begins at – cusp tips .
ü Odontoblasts.
i.
Length – increases about – 40
µm.
Length – increases about – 40
µm.
ii.
Width – constant about – 7 µm.
Width – constant about – 7 µm.
ü Increment of dental matrix
i.
Until the crown is formed and
teeth erupt and move into occlusion – 4 µm/day.
Until the crown is formed and
teeth erupt and move into occlusion – 4 µm/day.
ii.
After teeth eruption – 1 µm/day
.
After teeth eruption – 1 µm/day
.
iii.
Reparative dentin formation
rate – 4 µm/day .
Reparative dentin formation
rate – 4 µm/day .
ü Each increment of predentin will be formed along – pulpal border.
ü Fibers that have been described as initial dentin deposition along
the cusp tips – Korff’s fibers.
the cusp tips – Korff’s fibers.
ü Tomes granular layer increases in amount from –cemento-enamel
junction to root apex.
junction to root apex.
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