MDS PREP
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.
Initiator in developing solution is
1. Acetic acid
2. Sodium thiosulphate
3. Hydroquinone
4. Potassium bromide
Oral Pathology
Answer: 3
Hydroquinone is the initiator in developing solutions for photographic films.
The skin of a patient undergoing radiotherapy will show after 2 weeks
1. Erythema
2. Depigmentation
3. Radiation-induced carcinomas
4. No change
Oral Pathology
Answer: 1
The skin of a patient undergoing radiotherapy will show erythema after 2 weeks.
A patient who has geen given tumoricidal dose of radiotherapy recently reports to dental clinic with painful carious exposed mandibular first molar with periapical abscess. The treatment of choice should be
1. Extraction of the offending tooth
2. Root canal treatment if possible
3. No treatment should be given
4. Incision and drainage of abscess
Oral Pathology
Answer: 2
Root canal treatment is the treatment of choice for a patient with a painful carious exposed mandibular first molar with periapical abscess.
Thistle-tube appearance of pulp chamber is a feature of
1) Coronal dentin dysplasia
2) Regional odontodysplasia
3) Dentinogenesis imperfecta
4) Amelogenesis imperfecta
Oral Pathology
Answer: 1
Coronal dentin dysplasia is a genetic condition that affects the development of dentin, leading to abnormal pulp chamber morphology. The "thistle-tube" appearance refers to the shape of the pulp chamber, which resembles a thistle tube due to the constricted and elongated form of the pulp space. This condition is characterized by a normal crown appearance but with significant alterations in the pulp chamber and root canal system, making it distinct from other dental dysplasias.
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.
Normal serum, Ca and alkaline PO4 are in
1. Cherubism
2. Hypothyroidism
3. Hyperparathyroidism
4. Paget"s disease
Oral Pathology
Answer: 1
Normal serum calcium and alkaline phosphatase levels are seen in cherubism.
Hypopigmentation, gray streaks of hair, degranulation defect of neutrophils and neuropathy are seen in
1. Aleukaemic leukaemia
2. Chronic granulocytic leukaemia
3. Lazy leukocyte syndrome
4. Chediak-Higashi syndrome
Oral Pathology
Answer: 4
Hypopigmentation, gray streaks of hair, degranulation defect of neutrophils, and neuropathy are seen in Chediak-Higashi syndrome.