MDS PREP
A black line on the gingiva which follows the contour of the margin is due to
1. Lead
2. Argyria
3. Iron
4. Mercury
Oral Pathology
Answer: 4
A black line on the gingiva which follows the contour of the margin is due to mercury.
Reversible pulpitis change to irreversible pulpits primarily because of
1) Vascular strangulation
2) Reduced host resistance
3) Invasion of microorganisms
4) An increase in microbial virulence
Oral Pathology
Answer: 3
Reversible pulpitis changes to irreversible pulpitis primarily because of
invasion of microorganisms.
Reversible pulpitis is a condition where the pulp is inflamed but can
potentially heal if the causative agent is removed and the pulp remains vital.
Irreversible pulpitis, however, occurs when the inflammation is severe or
chronic, leading to irreversible damage to the pulp. The primary reason for this
progression is typically the invasion of microorganisms and their byproducts,
which can cause further inflammation and necrosis of pulpal tissue, making
healing unlikely.
Corticosteriods are used in all of the following oral conditions except
1. Erythema multiforme
2. Recurrent aphthous ulcer
3. Primary herpes
4. Herpes zoster
Oral Pathology
Answer: 3
Corticosteroids are not typically used for primary herpes infections.
Leucocytopenia is seen in
1. Influenza
2. Agranulocytosis
3. Liver cirrhosis
4. All of the above
Oral Pathology
Answer: 4
Leukocytopenia can be seen in influenza, agranulocytosis, and liver cirrhosis.
The wavelength of X-ray photon depends upon
1. Milli amperage
2. Kilo voltage
3. Distance between source and object
4. Quantity of electrons in the cathod stream
Oral Pathology
Answer: 2
The wavelength of X-ray photons depends on the kilo voltage applied.
Which of the following has been implicated due to sunlight
1. Basal cell carcinoma
2. Lymphoepithelioma
3. Junctional nevus
4. Verruca vulgaris
Oral Pathology
Answer: 1
Basal cell carcinoma (BCC) is a type of skin cancer that is strongly associated with prolonged exposure to ultraviolet (UV) radiation from sunlight.
Diabetes insipidus, exophthalmous and radiolucent bone defects within the skull are most suggestive of which of the following conditions
1. Sickle cell anaemia
2. Niemann-pick disease
3. Letterer-Siwe disease
4. Hand-Schuller-Christian disease
Oral Pathology
Answer: 4
Diabetes insipidus, exophthalmos, and radiolucent bone defects suggest Hand-Schuller-Christian disease.
Compound odontoma shows on a radiograph as
1) Supernumerary teeth
2) Radiolucent and radiopaque areas
3) Masses of calcified areas
4) Distinguishable tooth-like structures
Oral Pathology
Answer: 4
A compound odontoma is a benign odontogenic tumor consisting of enamel, dentin, cementum, and pulp arranged in recognizable tooth-like structures. Radiographically, it appears as multiple small, tooth-like radiopaque structures, unlike complex odontomas, which show as masses of calcified material.