MDS PREP
Most radioresistant cells are
1. Lymphocytes
2. Granulocytes
3. Muscle cells
4. Connective tissue cells
Oral Pathology
Answer: 3
Muscle cells are the most radioresistant cells.
When treated with simple curettage which odontogenic tumour is most likely to recur
1) Complex odontoma
2) Compound odonotoma
3) Odentogenic myxoma
4) Ameloblastic fibroma
Oral Pathology
Answer: 3
Explanation: Odontogenic myxoma is known for its aggressive behavior and tendency to recur after treatment, including curettage. It is a benign but locally invasive tumor, and simple curettage often does not remove the entire tumor, leading to recurrence.
Rumpel Leede or the torniquet test is a measure of
1. Blood pressure
2. Capillary fragility
3. Factor IX deficiency
4. Clotting time
Oral Pathology
Answer: 2
Rumpel Leede or the tourniquet test measures capillary fragility.
Thistle-tube appearance of pulp chamber is a feature of
1) Coronal dentin dysplasia
2) Regional odontodysplasia
3) Dentinogenesis imperfecta
4) Amelogenesis imperfecta
Oral Pathology
Answer: 1
Coronal dentin dysplasia is a genetic condition that affects the development of dentin, leading to abnormal pulp chamber morphology. The "thistle-tube" appearance refers to the shape of the pulp chamber, which resembles a thistle tube due to the constricted and elongated form of the pulp space. This condition is characterized by a normal crown appearance but with significant alterations in the pulp chamber and root canal system, making it distinct from other dental dysplasias.
Acanthosis is
1. Increase in mitotic division
2. Increase in thickness of superficial layer
3. Increase in thickness of spinous layer
4. Disruption of basal lamina
Oral Pathology
Answer: 3
Acanthosis refers to the hyperplasia or
thickening of the stratum spinosum layer of the epidermis or epithelium. It is
often seen in conditions such as psoriasis or lichen planus. This is distinct
from other phenomena like increased mitotic division or disruption of the basal
lamina.
Perleche is caused by
1. Decreased interdental space
2. Increased interdental space
3. Lack of Vit C
4. Trauma to the corners of the mouth
Oral Pathology
Answer: 2
Perleche is caused by increased interdental space, often due to angular cheilitis.
Which of the following intraoral sites is taken as confirmation biospy for amyloidosis
1. Tongue
2. Gingiva
3. Palate
4. Buccal mucosa
The gingiva is taken as the confirmation biopsy site for amyloidosis.
Which of the following is not characteristic of congenital syphilis?
1. Ghon complex
2. Interstitial keratitis
3. Mulberry molars
4. Notched incisors
Oral Pathology
Answer: 1
Ghon complex is associated with primary tuberculosis, not congenital syphilis. The other options (interstitial keratitis, mulberry molars, and notched incisors) are indeed characteristics of congenital syphilis.