MDS PREP
Vitamin "D" deficiency causes
1. Widening of predentin
2. Defective calcification
3. Microdontia
4. Interglobular dentin formation
Oral Pathology
Answer: 1
Vitamin D deficiency causes widening of predentin due to defective calcification.
Bence Jones proteins are seen in
1. Uraemia
2. Diabetes mellitus
3. Polycythaemia vera
4. Mediterranean anaemia
Oral Pathology
Answer: 3
Bence Jones proteins are seen in multiple myeloma, not polycythemia vera.
An etiological factor for macroglossia is
1. Atrophic glossitis
2. Oral submucous fibrosis
3. Syphilitic glossitis
4. Hurler"s syndrome
Oral Pathology
Answer: 4
An etiological factor for macroglossia is Hurler's syndrome.
Which of the following tumors is most aggressive
1) Myxoma
2) Cementoblastoma
3) Ameloblastic fibroma
4) Ameloblastic fibro-odontoma
Oral Pathology
Answer: 1
Myxoma is the most aggressive tumor among the options listed. It is a rare,
benign, but locally aggressive neoplasm that can occur in various anatomic
locations, particularly in the heart and skin. Myxomas are known for their
ability to invade surrounding tissue and cause significant damage to the organ
in which they are found.
Here is a brief description of each tumor type:
1) Myxoma: As mentioned earlier, these are rare but locally
aggressive tumors that can invade and destroy surrounding tissues. They are
typically soft and gelatinous in consistency. When myxomas occur in the heart,
they can obstruct blood flow and cause severe complications.
2) Cementoblastoma: This is a rare, benign tumor that arises
from the periodontal ligament cells that are responsible for producing cementum,
which is the bone-like tissue that anchors teeth in the jaw. Cementoblastomas
are generally slow-growing and less aggressive compared to myxomas.
3) Ameloblastic fibroma: This is a benign, non-invasive tumor
that occurs in the jaw, typically in younger patients. It is composed of both
odontogenic epithelial cells and mesenchymal cells, which are involved in tooth
development. These tumors can cause expansion of the bone but are not as
aggressive as myxomas.
4) Ameloblastic fibro-odontoma: This is a mixed odontogenic
tumor, which means it is composed of both dental epithelial and mesenchymal
cells. It is usually benign and presents as a slowly growing, painless swelling
in the jaw. While it can cause bone expansion, it is less aggressive and
typically does not invade surrounding tissues like a myxoma.
Trigeminal neuralgia ( tic doulourex ) is characterized by
1. Paralysis of one side of the face
2. Uncontrollable twitching of muscles
3. Sharp, excruciating pain of short duration
4. Prolonged episodes of pain on one side of the face
Oral Pathology
Answer: 3
Trigeminal neuralgia is a chronic pain
condition involving the trigeminal nerve, which supplies sensation to the face.
The hallmark symptom is sudden, severe, stabbing or electric-shock-like pain,
typically lasting for seconds to a few minutes. This pain is often triggered by
stimuli such as touching the face, chewing, or even speaking. Other options
(e.g., paralysis or prolonged episodes) do not describe this condition
accurately.
Infectious mononucleosis has
1. Multiple draining sinuses
2. Ulcers which bruise easily
3. Palatal perforation
4. Alveolar bone loss
Oral Pathology
Answer: 2
Infectious mononucleosis is characterized by ulcers that bruise easily.
Which of the following facilitates comparison between different radiation
1. Rad
2. Rem
3. Roentgen
4. Quality factor
Oral Pathology
Answer: 2
Rem facilitates comparison between different types of radiation.
Radiation produced form tube other than focal spot is called
1. Stray radiation
2. Scattered radiation
3. Characteristic radiation
4. Primary radiation
Oral Pathology
Answer: 1
Radiation produced from the tube other than the focal spot is called stray radiation.