MDS PREP
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.
TSC1 gene plays a vital role in the pathogenesis of a neurocutaneous syndrome called Tuberous sclerosis. It is located on which chromosome?
1) Chromosome 16
2) Chromosome 9
3) Chromosome 4
4) Chromosome 3
General Pathology Answer: 2The TSC1 gene, which plays a role in Tuberous sclerosis, is located on chromosome 9.
Chemotherapy can be successful during treatment of
1. Ameloblastoma
2. Leukaemia
3. Fibrosarcoma
4. Basal cell carcinoma
Oral Pathology
Answer: 2
Chemotherapy can be successful in the treatment of leukemia.
All of the following can cause osteoporosis, except
1. Hyperparathyroidism
2. Steroid use
3. Fluorosis
4. Thyrotoxicosis
Oral Pathology
Answer: 3
Fluorosis does not cause osteoporosis.
What are common signs of Cushing's syndrome?
1) Hyperkalemia and extreme fatigue
2) Central obesity and a buffalo hump
3) Decreased blood glucose levels
4) Testicular atrophy
Common signs of Cushing's syndrome include central obesity and a buffalo hump, resulting from excess cortisol production.
Which of the following diseases of the skin is the most likely to exhibit fluid blisters on the skin and/or oral mucosa?
1) Pemphigus
2) Lichen planus
3) Keratosis follicularis
4) Erythema multiforme
Oral Pathology
Answer: 1
Pemphigus is an autoimmune blistering disease characterized by the formation of bullae (fluid-filled blisters) on the skin and mucous membranes, including the oral mucosa. This condition occurs when the body's immune system mistakenly attacks the proteins that bind the layers of the skin together, leading to separation and blistering. The blisters are usually large and painful, and they can rupture easily, leaving raw, exposed areas of skin or mucous membrane.
Lichen planus, keratosis follicularis, and erythema multiforme are other skin conditions but do not typically present with fluid blisters as the main feature.
The X-ray collimators commonly used in dentistry include the following except
1. Diaphragm collimator
2. Tubular collimator
3. Rectangular collimator
4. Square collimator
Oral Pathology
Answer: 4
Square collimators are not commonly used in dentistry.
Disease which increases oral melanin pigmentation
1. Addison"s disease
2. Hyperthyroidism
3. Nephritis
4. All of the above
Oral Pathology
Answer: 1
Diseases that increase oral melanin pigmentation include Addison's disease.