|
Questions
|
Answers
|
|
The approximate
number of tubules in inner dentin is |
50,000 per sq
mm |
|
The approximate
number of tubules in middle of dentin is about |
40,000 per sq
mm |
|
The secondary
curvature of dentinal tubule sometime coincide with adjacent dentin tubule, giving a appearance of line crossing dentin is |
Contour line of
Owen |
|
As compared to
intertubular dentin, Peritubular dentin lacks a |
Collagenous
fibrous matrix |
|
The type of
dentin seen in routine demineralized section is |
Intertubular
dentin |
|
During routine
demineralization, the type of dentin lost is |
Peritubular
dentin |
|
The cause of
loss of peritubular dentin in conventional demineralizaton is |
Its lack of
collagen, that imparts the stability |
|
The mineral
component of peritubular dentin is |
Carbonated
appatite |
|
The difference
between crystalline forms of peritubular and intertubular dentin is |
Peritubular
dentin has predominantly hexagonal shapped crystallites while intertubular dentin crystallites appears as compact platelets |
|
In peripehral
or mantle dentin, peritubular dentin occupies |
Two thid of
entire cross section of dentin. |
Prof. Rooban Thavarajah
Oral and Maxillofacial Pathologist
List