MDS PREP
A bacterial disease with oral manifestations is
1) Herpes Measles
2) Measles
3) Diphtheria
4) Leishmaniasis
Oral Pathology
Answer: 3
Diphtheria serious bacterial infection that usually affects the mucous
membranes of the nose and throat.
Diphtheria signs and symptoms usually begin 2 to 5 days after a person becomes
infected. Signs and symptoms may include:
A thick, gray membrane covering the throat and tonsils
A sore throat and hoarseness
Swollen glands (enlarged lymph nodes) in the neck
Difficulty breathing or rapid breathing
Nasal discharge
Fever and chills
Tiredness
Skin (cutaneous) diphtheria
A second type of diphtheria can affect the skin, causing pain, redness and
swelling similar to other bacterial skin infections. Ulcers covered by a gray
membrane also may be a sign of skin diphtheria.
Radiodensity can be increased by
1. Decreasing mA
2. Decreasing kVp
3. Decreasing target-film distance
4. Increasing target-film distance
Oral Pathology
Answer: 3
Radiodensity can be increased by increasing target-film distance.
Carcinoma of lip
1. Occurs mostly in males
2. Metastases easily
3. Occurs mostly in the lower lip
4. Is mostly basal cell type
Oral Pathology
Answer: 1
Carcinoma of the Lip
Occurs mostly in males: Lip carcinoma, particularly
squamous cell carcinoma, is more common in males than females. This is often
attributed to higher rates of tobacco and alcohol use, as well as increased
sun exposure without protection.
Metastases easily: While lip carcinomas can
metastasize, they do not typically do so as easily as other cancers.
Squamous cell carcinoma of the lip can metastasize, but it is often
localized initially.
Occurs mostly in the lower lip: This is true; the lower
lip is the most common site for lip carcinoma due to greater sun exposure
and thinner skin.
Is mostly basal cell type: This statement is
misleading. While basal cell carcinoma is the most common skin cancer
overall, squamous cell carcinoma is more prevalent in the lip region.
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.
Hypersensitively reaction seen in stomatitis venenata is
1. Type I
2. Type II
3. Type III
4. Type IV
Hypersensitivity reactions seen in stomatitis venenata are classified as Type IV.
Attrition is
1. The loss by wear of tooth substance resulting from tooth brushing
2. The loss by wear of tooth substance resulting from mastication and bruxism
3. Both of the above
4. None of the above
Oral Pathology
Answer: 2
Attrition is the loss of tooth substance resulting from mastication and bruxism.
X-rays are generated when a stream of electrons travelling from tungsten filament is suddenly stopped by its impact on the
1. Gruntled filament
2. Anodic tungsten target
3. Cathodic tungsten target
4. Molybdenum lining of anode
Oral Pathology
Answer: 2
X-rays are generated when a stream of electrons traveling from the tungsten filament is suddenly stopped by its impact on the anodic tungsten target.
Macrodontia is associated with
1. Acromegaly
2. Pituitary gigantism
3. Hypoparathyroidism
4. Hyperthyroidism
Oral Pathology
Answer: 2
Macrodontia is associated with pituitary gigantism.