MDS PREP
Grid is used
1. To remove secondary radiation
2. Filter the radiation
3. Removes scattered radiation
4. None of the above
Oral Pathology
Answer: 3
Grids are used to remove scattered radiation from the X-ray beam.
Bell"s palsy is triggered by
1. Exposure to cold
2. Tooth extraction
3. Local and systemic infection
4. Any of the above
Oral Pathology
Answer: 4
Bell's palsy can be triggered by exposure to cold, tooth extraction, or infections.
Patient reports with discoloured teeth bearing brown stains. The teeth glow fluorescent in UV light. The most likely diagnosis is
1. Porphyria
2. Amelogenesis imperfecta
3. Hutchinson"s teeth
4. Tetracycline staining of teeth
Oral Pathology
Answer: 4
The most likely diagnosis for discolored teeth that glow fluorescent in UV light is tetracycline staining of teeth.
A 45-year-old woman with a history of hypertension and type 2 diabetes mellitus presents with complaints of blurry vision and headaches. Her blood pressure is 180/100 mmHg. An eye exam reveals the presence of retinal hemorrhages and exudates. Which of the following conditions is she most likely experiencing?
1) Diabetic retinopathy
2) Hypertensive retinopathy
3) Macular degeneration
4) Glaucoma
Hypertensive retinopathy is the condition characterized by retinal hemorrhages and exudates in a patient with high blood pressure.
In Peutz-Jeghers syndrome, the oral lesions are
1. Ulcerations of oral mucosa
2. Sebaceous glands of oral mucosa
3. Silver pigmentation of oral mucosa
4. None of the above
Oral Pathology
Answer: 3
In Peutz-Jeghers syndrome, the oral lesions are characterized by silver pigmentation of the oral mucosa.
Which of the following is related to an enzyme deficiency and involves
1. Hypophosphatasia
2. Cyclic neutropenia
3. Juvenile periodontitis
4. Papillion-Lefevre syndrome
Oral Pathology
Answer: 1
Hypophosphatasia is related to an enzyme deficiency.
Diabetes insipidus, exophthalmous and radiolucent bone defects within the skull are most suggestive of which of the following conditions
1. Sickle cell anaemia
2. Niemann-pick disease
3. Letterer-Siwe disease
4. Hand-Schuller-Christian disease
Oral Pathology
Answer: 4
Diabetes insipidus, exophthalmos, and radiolucent bone defects suggest Hand-Schuller-Christian disease.
Recurrent ulcers occuring on gingival and palate are most probably
1) Aphthous ulcers
2) Herpes simplex
3) Koplick spots
4) Lesions of Behcet"s syndrome
Oral Pathology
Answer: 2
Recurrent ulcers on the gingiva and palate are most commonly associated with herpes simplex virus (HSV) infections. Herpes simplex can cause painful vesicular lesions that eventually ulcerate, leading to recurrent oral ulcers, particularly in the mucosal areas such as the gingiva and palate.
Aphthous ulcers (option 1) typically occur on non-keratinized mucosa and are not usually found on the gingiva. Koplick spots (option 3) are associated with measles and are not ulcers but rather small, bluish-white spots on the buccal mucosa. Behcet's syndrome (option 4) can cause oral ulcers, but they are often more widespread and associated with systemic symptoms. Therefore, the most probable cause of recurrent ulcers specifically on the gingiva and palate is herpes simplex.