Peritubular in
interglobular dentin is a
Absent as interglobular
dentin is  uncalcified
The looping of dentinal
tubules in radicular dentin causes
Airspaces formation in the
loop in ground section, resulting in internal reflection of transmitted light
causing Tomes granular layer
Reason for absence of Tomes
granular layer in crown is
Differences in rate of
formation of dentinal tubule
Lines associated with
primary curvature of dentin is
Schreger line –
differentiating primary and secondary dentin
Lines associated with
secondary curvature of dentin is
Contour line of Owen;
neonatal line
short period deposition of
incremental lines in dentin are commonly called as
von Ebner’s line
The coarser long period
lines in dentin are called as
Andresen line
Between two Andresen lines
in dentin, there are ___________ number of von Ebner lines
six to 10 pairs
Where is the primary enamel
knot found?
It is a found in the tip of
epithelial tooth bud and is a signalling center
Where is the secondary
enamel knot found?
At the site of future cusp


1 2 15
February 28th, 2014

Know your tool – Microscope

Image distance and object distance. With respect to the principal planes of a lens, the image-to-lens and object-to-lens distances, as […]

February 28th, 2014

Definitions in Microscopy

Diffraction grating. A transparent or reflective substrate containing an array of parallel lines having the form of alternating grooves and […]

February 21st, 2014

Inking the Specimen

INKING THE SPECIMEN ·         Various Water/organic fluids insoluable inks and colored powders can be used to mark critical points on […]

February 13th, 2014

Tissue Sampling Techniques – Small Biopsies & Triaging

Tissue Sampling Techniques – Small Biopsies & Triaging Most Important Steps • Patient identification – Identification on the requisition must […]

February 6th, 2014


(Material Collected From various reliable sources- My role is just assembling facts for you. No intention of claiming this to […]

January 30th, 2014

Previous Year Question Papers of Various universities – For MDS – Oral Pathology

CONNECTIVE TISSUE STAINS 1.     Discuss the CT stains10 mks(RGUHS) 2.     Routine stains used in oral pathology-10 mks(RGUHS) 3.     Discuss stains […]

January 23rd, 2014

Previous years questions from various Indian Universities – for MDS in Oral Pathology

PULP AND PERIAPICAL INFECTIONS Chronic hyperplastic pulpitis- 10 mks Define and classify Osteomyelitis. Discuss in detail non- suppurative OM-10 mks […]

January 16th, 2014

Previous years questions from various Indian Universities – for MDS in Oral Pathology

MISCELLANEOUS IN ORAL PATHOLOGY 1.      Granulomatous infections of the oral cavity- 100 mks (MU) 2.      Oro- facial pain-10 mks 3.      […]

January 9th, 2014

Human Deciduous Mandibular Molar

January 9th, 2014

Previous years questions from various Indian Universities – for MDS in Oral Pathology

CONNECTIVE TISSUE NEOPLASMS 1.       Discuss the neoplastic lesions of bone of CT origin- 20 mks 2.      Classify nerve tissue tumours […]