MDS PREP
When treated with simple curettage which odontogenic tumour is most likely to recur
1) Complex odontoma
2) Compound odonotoma
3) Odentogenic myxoma
4) Ameloblastic fibroma
Oral Pathology
Answer: 3
Explanation: Odontogenic myxoma is known for its aggressive behavior and tendency to recur after treatment, including curettage. It is a benign but locally invasive tumor, and simple curettage often does not remove the entire tumor, leading to recurrence.
Asymptomatic facial swelling is seen in
1. Ludwings angina
2. Angioneurotic oedema
3. Bell"s palsy
4. All of the above
Oral Pathology
Answer: 2
Angioneurotic edema is characterized by asymptomatic facial swelling.
Compound odontoma shows on a radiograph as
1) Supernumerary teeth
2) Radiolucent and radiopaque areas
3) Masses of calcified areas
4) Distinguishable tooth-like structures
Oral Pathology
Answer: 4
A compound odontoma is a benign odontogenic tumor consisting of enamel, dentin, cementum, and pulp arranged in recognizable tooth-like structures. Radiographically, it appears as multiple small, tooth-like radiopaque structures, unlike complex odontomas, which show as masses of calcified material.
All of the following statements about an intraoral dental X-ray film are true except
1. It is composed of a cellulose acetate base coated with a silver bromide emulsion
2. It has a thin sheet of lead foil that lies in front of the film to prevent overexposure
3. It has an embossed dot on it which should be orientated towards the source of X-rays
4. It is exposed by the direct action of X-rays on the emulsion
Oral Pathology
Answer: 2
The statement about the lead foil is incorrect; it lies behind the film to prevent backscatter.
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.
Which of the following disease are common in ashkenazi jews
1. Hand-Schuller-Christian disease and Letterer-Siwe disease
2. Gaucher"s disease and Niemann-Pick disease
3. Amelogenesis imperfecta and dentinogenesis imperfecta
4. Achondroplasia and Marfan"s syndrome
Oral Pathology
Answer: 2
Gaucher's disease and Niemann-Pick disease are common in Ashkenazi Jews.
Which of the following diseases are characterized by absence of lamina dura, hypocalcified dentine, elongated pulp horns, periapical infection with multiple periapical fistulas
1. Paget"s disease
2. Primary hyperthyroidism
3. Vit D resistant rickets
4. Hypophosphatasia
Oral Pathology
Answer: 3
Vitamin D resistant rickets is characterized by absence of lamina dura and hypocalcified dentine.
Which of the following are characteristic feature of cherubism
1. Premature exfoliation of primary teeth
2. Hypoplastic defects
3. Progressive painless symmetric swelling of cheek bones
4. A + C
Oral Pathology
Answer: 4
Progressive painless symmetric swelling of cheek bones is a characteristic feature of cherubism.