MDS PREP
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.
Pink"s disease is due to
1. Toxicity of silver
2. Toxicity of mercury
3. Toxicity of lead
4. Toxicity of tetracycline
Oral Pathology
Answer: 2
Pink's disease is due to the toxicity of mercury.
The antecedents of Sq. cell carcinoma is/are:
1. Leukoplakia
2. Solar keratosis
3. Margins of long standing draining sinuses
4. All of the above
Pathology
Answer: 4
All of the listed conditions (leukoplakia, solar keratosis, and margins of long-standing draining sinuses) are known precursors to squamous cell carcinoma.
X-rays films are insensitive to which light
1. Yellow and red
2. Red
3. White
4. Blue and green
X-ray films are insensitive to yellow and red light.
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.
Unusual extensibility of the tongue is a characteristic feature of
1. Epidermolysis bullosa
2. Syphilis
3. Darier-White disease
4. Ehlers-Danlos syndrome
Oral Pathology
Answer: 4
Unusual extensibility of the tongue is a characteristic feature of Ehlers-Danlos syndrome.
Oral manifestation of infectious mononucleosis is most commonly
1. Bluish red spots opposite maxillary molar
2. Pseudomembrane on gingival
3. Pinpoint petechiae on the palate
4. Gingival hyperplasia
Oral Pathology
Answer: 3
Pinpoint petechiae on the palate is the most common oral manifestation of infectious mononucleosis.
Which of the following is the most common cause of hypothyroidism in adults leading to myxedema?
1) Cretinism
2) Grave's disease
3) Hyperthyroidism
4) Hashimoto's thyroiditis
Hashimoto's thyroiditis is the most common cause of hypothyroidism in adults leading to myxedema.