MDS PREP
A five-year-old child presents with chronic bed wetting and bilateral loose deciduous first molars. His mother says that she wants to drink water several times during each night. Which of the followingis the most likely diagnosis?
1. Hand-Schuller-Christian disease
2. Marble bone disease
3. Nieman-Pick disease
4. Polyostotic fibrous dysplasia
Oral Pathology
Answer: 1
The most likely diagnosis for the child is Hand-Schuller-Christian disease, which can cause chronic bedwetting and dental issues.
Which of the following is not a complication of therapeutic radiation
1. Mucositis
2. Xerostomia
3. Cervical caries
4. Paraesthesia of the tongue
Oral Pathology
Answer: 4
Paraesthesia of the tongue is not a complication of therapeutic radiation.
The residual biologic damage tha remains following an exposure to radiation is called
1. Direct effect
2. Indirect effect
3. Cumulative effect
4. Tolerance
Oral Pathology
Answer: 3
The residual biological damage that remains following exposure to radiation is called cumulative effect.
Premature exfoliation of deciduous teeth is seen in
1. Hypophosphatasia
2. Hypophosphataemia
3. Hyperphosphtasia
4. Hyperparathyrroidism
Oral Pathology
Answer: 1
Premature exfoliation of deciduous teeth is seen in hypophosphatasia.
Using "B" film, exposure is 1 R. What is the exposure when "D" film is used
1. 1 R
2. 1/2 R
3. 1/4 R
4. 1/8 R
Oral Pathology
Answer: 3
Using "B" film, exposure of 1 R will be reduced to 1/4 R when "D" film is used.
Precancerous potential in Plummer-Vinson syndrome may be due to change in the epithelium like
1. Atrophy
2. Hypertrophy
3. Acanthosia
4. All the above
Oral Pathology
Answer: 1
Plummer-Vinson syndrome is associated with atrophic changes in the
epithelium, which can lead to an increased risk of cancer
Plummer-Vinson syndrome is characterized by a classic triad of
clinical features: dysphagia (difficulty swallowing), iron-deficiency anemia,
and esophageal webs. Additional symptoms may include glossitis (inflammation of
the tongue), koilonychia (spoon-shaped nails), and cheilitis (inflammation of
the lips).
Clinical Features of Plummer-Vinson Syndrome:
Dysphagia:
Difficulty swallowing due to the presence of esophageal webs, which
can obstruct the esophagus.
Iron-Deficiency Anemia:
Resulting from chronic blood loss or malabsorption, leading to
fatigue and weakness.
Esophageal Webs:
Thin membranes that form in the esophagus, contributing to
swallowing difficulties.
Glossitis:
Inflammation of the tongue, which may appear smooth and swollen.
Koilonychia:
Spoon-shaped nails that can indicate iron deficiency.
Cheilitis:
Inflammation and cracking of the lips, often associated with
nutritional deficiencies.
Fatigue and Weakness:
Common symptoms due to anemia and nutritional deficiencies.
Associated Risks:
Esophageal Cancer:
There is an increased risk of developing esophageal cancer in
individuals with Plummer-Vinson syndrome.
Prevention:
Iron Intake:
Ensuring adequate dietary iron may help prevent the onset of this
syndrome. Diagnosis and Management:
Diagnosis:
Diagnosis is typically made through clinical evaluation, endoscopy,
and imaging studies to identify esophageal webs and assess for anemia.
Management:
Treatment often involves iron supplementation to address anemia and
dietary modifications to improve iron intake. In some cases, dilation of
esophageal webs may be necessary to alleviate dysphagia
Reduced salivary flow following irradiation is dose dependent. At what dose does the flow reach essentially zero?
1. 4000 rads
2. 5000 rads
3. 6000 rads
4. 7000 rads
Oral Pathology
Answer: 3
Reduced salivary flow reaches essentially zero at a dose of 6000 rads.
Complication of irradiation of mouth may include all EXCEPT
1. Accelerated caries activity
2. Caries in unusual sites
3. Accelerated periodontal diseases
4. Xerostomia
Oral Pathology
Answer: 3
Accelerated periodontal diseases is not a complication of irradiation of the mouth.