MDS PREP
Angular stomatitis
1. Can be a concomitant of any candidal infection
2. Is seen mainly in adults
3. May be associated with Streptococcus
4. May be a sign of anaemia
Angular stomatitis can be a sign of anemia and may be associated with candidal infections.
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.
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).
Which of the following has the potential of undergoing spontaneous malignant transformation
1. Osteomalacia
2. Albright"s syndrome
3. Paget"s disease of bone
4. Osteogenesis imperfecta
Oral Pathology
Answer: 3
Paget's disease of bone has the potential for spontaneous malignant transformation.
The wavelength of X-ray photon depends upon
1. Milli amperage
2. Kilo voltage
3. Distance between source and object
4. Quantity of electrons in the cathod stream
Oral Pathology
Answer: 2
The wavelength of X-ray photons depends on the kilo voltage applied.
Osteoradionecrosis is due to
1. Endarteritis of blood vessels
2. Damage to periosteum
3. Damage to lymphatics
4. All of the above
Oral Pathology
Answer: 1
Osteoradionecrosis is due to endarteritis of blood vessels.
When a shielded open cone is used the gonadal dose to a patient is mainly from
1. Leakage from tube
2. Primary X-ray tube
3. Scatters from patient"s face
4. All of the above
Oral Pathology
Answer: 3
The gonadal dose mainly comes from leakage from the tube when using a shielded open cone.
Green stains which occur frequently in children are due to
1. Enamel deficiency
2. Dentin deficiency
3. Material alba
4. Chromogenic bacteria
Oral Pathology
Answer: 4
Green stains in children are often due to chromogenic bacteria.