MDS PREP
Penetration power of X-ray is measure of
1. Exposure time
2. Milliamperage
3. Kilovoltage
4. None of the above
Oral Pathology
Answer: 3
Penetration power of X-ray is primarily measured by kilovoltage.
Metastatic disease to the oral region is most likely to occur in which of the following locations?
1) Tongue
2) Posterior maxilla
3) Posterior mandible
4) Floor of the mouth
Oral Pathology
Answer: 3
Metastatic disease in the oral cavity typically occurs in the posterior mandible. This is because the bone in this area is relatively porous and has a rich blood supply, making it more susceptible to the spread of cancer cells from distant sites in the body.
The oral lesion of warty dsykeratoma is described as
1. a small whitish area of the mucosa with a central depression
2. a hyperemic papule with erosion
3. an erythematous macule with a central area of grayish desquamation
4. a white keratotic. papillary or verrucous lesion
Oral Pathology
Answer: 1
The oral lesion of warty dsykeratoma is described as a small whitish area of the mucosa with a central depression
Red fluorescent fluid is seen in
1. Pemphigus
2. Erythema multiforme
3. Lichen planus
4. Porphyria
Oral Pathology
Answer: 4
Red fluorescent fluid is seen in porphyria.
The X-rays which are mostly likely to be absorbed by the tissues and produce an injury
1. X-rays of long wavelength
2. X-rays of short wavelength
3. Filtered X-rays
4. Central rays
Oral Pathology
Answer: 1
X-rays of long wavelength are more likely to be absorbed by tissues and cause injury.
Mean exposure of radiation from pantamograph is
1. 90 mR
2. 120 mR
3. 250 mR
4. 300 mR
Oral Pathology
Answer: 3
Mean exposure of radiation from a pantomograph is approximately 250 mR.
Delayed eruption of at least part of the dentition is a recognized feature of all of the following except
1. Rickets
2. Congenital hyperthyroidism
3. Cleidocranial dysplasia
4. Cherubism
Oral Pathology
Answer: 2
Congenital hyperthyroidism does not typically cause delayed eruption of teeth.
Normal serum, Ca and alkaline PO4 are in
1. Cherubism
2. Hypothyroidism
3. Hyperparathyroidism
4. Paget"s disease
Oral Pathology
Answer: 1
Normal serum calcium and alkaline phosphatase levels are seen in cherubism.