MDS PREP
Perleche is caused by
1. Decreased interdental space
2. Increased interdental space
3. Lack of Vit C
4. Trauma to the corners of the mouth
Oral Pathology
Answer: 2
Perleche is caused by increased interdental space, often due to angular cheilitis.
Tic douloureaux is associated with which of the following nerves
1. 7th nerve
2. 3rd nerve
3. 5th nerve
4. None of the above
Oral Pathology
Answer: 3
Tic douloureux, also known as trigeminal neuralgia, is a condition characterized by severe facial pain. It is associated with the trigeminal nerve (cranial nerve V), which is responsible for sensation in the face and motor functions such as biting and chewing.
The burtonian line around the gingival is caused by the absorption of
1. Lead
2. Copper
3. Mercury
4. Bismuth
Oral Pathology
Answer: 1
The Burtonian line around the gingival is caused by the absorption of lead.
All of the following can cause osteoporosis, except
1. Hyperparathyroidism
2. Steroid use
3. Fluorosis
4. Thyrotoxicosis
Oral Pathology
Answer: 3
Fluorosis does not cause osteoporosis.
The main purpose of intensifying screens in extraoral radiographic films is
1. To increase the contrast of film
2. To increase the exposure time
3. To decrease the speed of film
4. Decrease secondary radiation to patient
Oral Pathology
Answer: 4
The main purpose of intensifying screens is to decrease secondary radiation to the patient.
Which of the following sexually transimitted is not of diseases either bacterial or chlamydial origin
1. Gonnorhoea
2. Syphilis
3. Molluscum contagiosum
4. Lymphogranuloma venereum
Oral Pathology
Answer: 3
Molluscum contagiosum is a viral infection caused by a poxvirus, not a bacterial or chlamydial infection. The other options (gonorrhea, syphilis, and lymphogranuloma venereum) are all caused by bacteria.
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.
Tetracycline stains appear as
1. Yellow and brown stains in enamel and dentin
2. Yellow and brown stains only in enamel
3. Yellow and brown stains only in dentin
4. Only yellow stain in enamel
Oral Pathology
Answer: 1
Tetracycline stains appear as yellow and brown stains in both enamel and dentin.