MDS PREP
Radiation caries is caused by irradiation of
1. Salivary glands
2. Enamel
3. Enamel and dentin
4. Oral mucosa
Oral Pathology
Answer: 1
Radiation caries is caused by irradiation of salivary glands.
Quantity of the X-ray beam is governed by
1. kVp
2. mAs
3. Filament current
4. Length of the X-ray tube
Oral Pathology
Answer: 1
Quantity of the X-ray beam is governed by mAs (milliampere-seconds).
Marsicato buccarum is
1. Also referred as cheek bite or lip bite
2. Another name for linea alba buccalis
3. Caused due to cold injury
4. Another name for treatements ulcer
Oral Pathology
Answer: 1
Marsicato buccarum is also referred to as a cheek bite or lip bite.
The histiocytosis X is a spectrum of disorders, which include the following conditions
1. Eosinophilic granuloma
2. Hand-Schuller-Christian disease
3. Letterer-Siwe disease
4. All of the above
Oral Pathology
Answer: 4
Histiocytosis X includes eosinophilic granuloma, Hand-Schuller-Christian disease, and Letterer-Siwe disease.
Prodromal symptomos precede 1 to 2 days before the onset of disease in
1) Viral fever
2) Erythema multiforme
3) Pemphigus
4) Pemphigoid
Oral Pathology
Answer: 1
Explanation: Prodromal symptoms are early signs that precede the full onset of a disease. In the case of viral fevers, patients often experience nonspecific symptoms such as malaise, fatigue, and low-grade fever 1 to 2 days before the more specific symptoms of the viral infection appear.
The epithelium which covers a healed ulcer is derived from
1. undifferentiated mesenchymal cells of the ulcer
2. intact epithelium at the ulcer margin
3. transformation of fibroblasts to epithelial cells
4. endothelial cells via the blood stream
Oral Pathology Answer: 2
The epithelium which covers a healed ulcer is derived from intact epithelium at the ulcer margin
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.
Asymptomatic facial swelling is seen in
1. Ludwings angina
2. Angioneurotic oedema
3. Bell"s palsy
4. All of the above
Oral Pathology
Answer: 2
Angioneurotic edema is characterized by asymptomatic facial swelling.