MDS PREP
Osteomalacia is
1. Defective osteoid + normal mineralization
2. Normal osteoid + defective mineralization
3. Abnormal osteoid + abnormal mineralization
4. Normal osteoid and demineralization
Osteomalacia is characterized by abnormal osteoid and abnormal mineralization.
Bell"s palsy is triggered by
1. Exposure to cold
2. Tooth extraction
3. Local and systemic infection
4. Any of the above
Oral Pathology
Answer: 4
Bell's palsy can be triggered by exposure to cold, tooth extraction, or infections.
All of the following statements about idiopathic thrombocytopenic purpura are true except
1. It is associated with platelet-specific autoantibodies
2. It causes a prolonged bleeding time
3. It is often controllable by immunosuppressive treatment
4. It causes more prolonged haemorrhage than haemophilia
Oral Pathology Answer: 4
It is associated with platelet-specific autoantibodies:
This statement is true. ITP is characterized by the
presence of autoantibodies that specifically target and destroy platelets,
leading to thrombocytopenia (low platelet count).
It causes a prolonged bleeding time: This statement is true.
In ITP, the low platelet count results in a prolonged bleeding time, as
there are fewer platelets available to form a clot.
It is often controllable by immunosuppressive treatment:
This statement is true. ITP can often be managed with
immunosuppressive therapies, such as corticosteroids, intravenous
immunoglobulin (IVIG), or other immunosuppressive agents, to help increase
platelet counts.
It causes more prolonged hemorrhage than hemophilia:
This statement is not true. While both ITP and hemophilia
can lead to bleeding, the mechanisms are different. Hemophilia is a clotting
factor deficiency, which can lead to more severe and prolonged bleeding
episodes, especially after trauma or surgery. In contrast, ITP primarily
affects the number of platelets rather than the clotting factors. Therefore,
the bleeding in hemophilia can be more severe and prolonged compared to that
in ITP.
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.
A disease which only affects the formation and eruption of tooth but does not cause hypoplasia is
1. Hypoparathyroidsm
2. Hyperthyroidism
3. Hyperpituitarism
4. Hypoadrenalism
Oral Pathology
Answer: 3
Hyperpituitarism affects the formation and eruption of teeth without causing hypoplasia.
Green discolouration of teeth is seen in
1. Tetracycline therapy
2. Fluorosis
3. Erythroblastosis foetalis
4. None of the above
Oral Pathology
Answer: 3
Green discoloration of teeth is seen in erythroblastosis fetalis.
The mode of inheritance of multilocular cystic fibrous dysplasia of the jaws and face is
1. Dominant
2. Recessive
3. Sex-linked
4. Intermediate sex-linked
Oral Pathology
Answer: 1
The mode of inheritance of multilocular cystic fibrous dysplasia is dominant.
Hypersensitively reaction seen in stomatitis venenata is
1. Type I
2. Type II
3. Type III
4. Type IV
Hypersensitivity reactions seen in stomatitis venenata are classified as Type IV.