1. Stage one of the Nolla’s stages of tooth development denotes

A. Absence of crypt
B. Presence of crypt
C. Initial calcification
D. Crown completion

Answer: B

2. Which material is not indicated as a root canal obturating material after pulpectomy in a primary tooth ?

A. Zinc oxide eugenol
B. Iodoform paste
C. Endoflas
D. Mineral trioxide aggregate

Answer – D

3. During a complex tongue thrust swallow, there is no contraction of

A. Temporal muscle
B. Mentalis muscle
C. Lips
D. Facial muscles

Answer- A

Complex tongue thrust is associated with generalised open bite and lack of contraction of lips and muscles.

4. Relative analgesia is a

A. Conscious sedation technique
B. Use of siblings for behaviour management
C. Pre-appointment behaviour modification technique
D. NSAID prescribed in children

Answer – A

Relative analgesia (RA) is a term introduced in dentistry by the American Harold Langa, in 1968, to represent inhalation sedation with a continuous flow and variable concentrations of nitrous oxide and oxygen to produce sedation and analgesia

5. Gerber appliance is

A. A functional space maintainer
B. A habit breaker appliance
C. An active space maintainer
D. None of the above

Answer : C

Gerber Space Regainer

It is an active fixed space maintainer that can be fabricated directly in patient’s mouth or in laboratory. A preformed band is selected for the abutment tooth and fitted. If the abutment tooth is carious, a stainless
steel crown can replace the band. A U-assembly is either soldered or welded to the band. A U-shaped wire is fitted into the assembly with or without coil springs.

6. In the X ray tube, X rays are originating from

A. Anode
B. Cathode
C. Filament
D. Focusing cup

Answer- A

X rays are produced by the interaction of electrons with tungsten target at the anode.

7. Sialographic appearance of normal salivary gland is

A. Ball in hand appearance
B. Sausage like appearance
C. Snow storm appearance
D. Tree in winter appearance

Answer- D

Tree in winter is the sialographic appearance of normal parotid gland.

8. Chloroma is the term given for

A. Soft tissue swelling in Burkits lymphoma
B. Intraoral tumor associated with Hodgkin’s lymphoma
C. Greenish tumor like swelling in leukemia
D. Benign tumor associated with plasma cell gingivitis

Answer- C

Chloroma is a rare, malignant green coloured tumor made up of myeloid cells. Usually associated with myeloblastic leukemia. Also called as granulocytic sarcoma.

9. Latent image is

A. an image that is very late in its formation
B. A very light radiograph
C. Produced after exposing but before developing
D. A very dark radiograph

Answer- C

When a beam of photons exits an object and exposes an X ray film, the photosensitive silver halide crystals in the film emulsion changes chemically. These chemically altered silver bromide crystals constitute the latent (invisible) image on the film.

10. Interstitial glossitis is a feature of

A. Primary syphilis
B. Secondary syphilis
C. Tertiary syphilis
D. Congenital syphilis

Answer- C

They represent fissures caused by atrophy and fibrosis of the tongue musculature. It has a premalignant potential.