The growth rate of acellular
extrinsic fibre cementum in adult is
0.005 to 0.01 micron per
what are collagen crimps
They are a specific type of
waviness of collagenous fibre, best visualized under polarizer, as a banded
structure reflecting the periodicity of the fiber
In PDL, The rate of collage
remodelling is highest along the
Root apex
Why PDL does not get
The rich presence of
hylaraoun and chondroitin sulphate deter the minerlaization. Moreover,
calcium binding proteins such as S100A4 in extracellular matrix of PDL have
been suggested to prevent mineralization
The main type of
glycosaminoglyacan in PDL is
Zone of Shear in PDL is
associated with
eruption of teeth.
Remodelling zone associated with teeth eruption and often in mid-region of
the PDL
The type of fibers that are
increased in PDL to accommodate high occusal loads are
Oxytalan fibers
An abutment teeth, as
compared to normal teeth have high numbers of ____________________ fibers
Oxytalan fibers
Periodontal ligament
fibroblasts are derived from
Gingival fibroblasts are
derived from


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 […]