MDS PREP
The following is an example of non-particulate radiation
1. X-rays and gamma rays
2. Electrons and beta rays
3. X-rays and beta rays
4. X-rays and electrons
Oral Pathology
Answer: 1
X-rays and gamma rays are examples of non-particulate radiation.
Which of the following tooth structure during formation is most affected due to Vit A deficiency
1. Enamel
2. Dentin
3. Cementum
4. Periodontal ligament
Oral Pathology
Answer: 1
Enamel is most affected during formation due to Vitamin A deficiency.
Lession of facial nerve at level of stylomastoid foramen leads to
1. Loss of taste sensation from anterior 2/3 of tongue
2. Paralysis of orbicularis oculi muscle
3. Losss of innervation to stapedius
4. Loss of lacrimal secretion
Lesion of the facial nerve at the stylomastoid foramen leads to paralysis of the orbicularis oculi muscle.
Disease which increases oral melanin pigmentation
1. Addison"s disease
2. Hyperthyroidism
3. Nephritis
4. All of the above
Oral Pathology
Answer: 1
Diseases that increase oral melanin pigmentation include Addison's disease.
Which of the following is not a form of ionising radiation
1. Alpha-particles
2. Beta-particles
3. X-rays
4. Radiowaves
Oral Pathology
Answer: 4
Radiowaves are not a form of ionizing radiation.
A case presenting with a gray coloured pseudomembrane whose removal is difficult and painful, can be
1) ANUG
2) Diphtheritic lesion
3) Secondary stage of syphilis
4) Desquamative gingivitis
Oral Pathology
Answer: 2
Diphtheritic lesions are caused by Corynebacterium diphtheriae. The hallmark of diphtheria is a tough gray pseudomembrane on mucosal surfaces like the pharynx or oral cavity. Attempting to remove it causes pain and bleeding. Other conditions like ANUG (acute necrotizing ulcerative gingivitis) produce pseudomembranes but are more localized and less gray.
A man of 50 years age reports with gradual loss of visual acuity and hearing power, most probably underlying cause could be
1. Fibrous dysplasia
2. Paget"s disease
3. Osteopetrosis
4. Cherubism
Oral Pathology
Answer: 2
Paget's disease is the most likely underlying cause for gradual loss of visual acuity and hearing power in a 50-year-old man.
Leucocytopenia is seen in
1. Influenza
2. Agranulocytosis
3. Liver cirrhosis
4. All of the above
Oral Pathology
Answer: 4
Leukocytopenia can be seen in influenza, agranulocytosis, and liver cirrhosis.