Pedodontics Revision #2

1. The most important morphologic or histologic consideration in cavity preparation in primary teeth is

Thickness of enamel and dentin

Direction of roots below CEJ

Size of primary molars

Direction of enamel rods cervically

Question 1 of 20

2. In the presence of a permanent successor, an ankylosed mandibular primary second molar should be extracted in all of the following situations, except

the erupted first permanent molar has started tipping over the ankylosed tooth resulting in loss of arch length

the ankylosed tooth is carious and is causing loss of arch length

the deciduous tooth is being retained much beyond its normal exfoliation time

numerous teeth in the arch are ankylosed

Question 2 of 20

3. Preventive resin restoration is used

Used in non cavitated pit and fissure sealants

In non accessible proximal areas

In cavitated pit and fissure sealants

In deep caries

Question 3 of 20

4. The KRI paste is composed of

Iodoform,camphor,parachlorophenol and menthol

Iodoform and ZOE

Parachlorophenol,camphor and menthol

Calcium hydroxide and iodoform

Question 4 of 20

5. The most common primary tooth to become ankylosed is a

maxillary canine.

mandibular molar.

mandibular canine.

maxillary molar.

Question 5 of 20

6. Acute gingivitis of sudden onset in year old is most likely to be

acute herpetic gingivostomatitis

periodontosis

herpes zoster

candidiasis

Question 6 of 20

7. The best filling material in deciduous teeth for RCT

Calcium hydroxide

Gutta percha

Zinc oxide eugenol

Amalgam

Question 7 of 20

8. Alveolar bone grafting in a cleft palate patient is done:

Before maxillary expansion, cross bite correction and before canine eruption

After maxillary expansion, cross bite correction and before canine eruption

Before maxillary expansion, cross bite correction and after canine eruption

After maxillary expansion, cross bite correction and after canine eruption

Question 8 of 20

9. When a deciduous tooth is moved orthodontically, the associated permanent tooth germ

can move in any direction

moves in the opposite direction

follows this movement

is not affected

Question 9 of 20

10. Who is called the father of intravenous conscious sedation?

Jorgenson

Colton

Lundy

Horace wells

Question 10 of 20

11. Which of the following is characteristic of an inverted mesiodens

May cause delayed eruption of maxillary central incisors

Is rarely discovered until it erupts into the nasal cavity

Is associated with an impacted canine

Is more common unilaterally than bilaterally

Question 11 of 20

12. Which of the following factors is not responsible for the discolouration of a traumatized deciduous anterior tooth

Active internal resorption of the tooth

Tearing of fibers of the periodontal ligament

Internal calcification of the pulp chamber

Extravasation of red cells from the vessels into the dentinal tubules

Question 12 of 20

13. Strawberry tongue is most commonly found in:

Recurrent aphthous stomatitis

Congenital syphilis

Acute necrotizing ulcerative gingivitis

Scarlet fever

Question 13 of 20

14. Mandibular foramina in a 4 year child is located

Above the level of occlusal plane

Near the roots of 1st molar

Below the level of occlusion plane

At the level of occlusal plane

Question 14 of 20

15. If a child`s teeth do not form this would primarily effect the growth of

Whole face

Alveolar bone

Mandible

Maxilla

Question 15 of 20

16. The extraction of a maxillary primary central incisor at the age of 6 years will cause

loss of intercanine space.

increased overbite.

increased intercanine space.

no change in intercanine space.

Question 16 of 20

17. A serious complication that can develop as a result of juvenile diabetes mellitus is

Aphasia

Blindness

Deafness

Ataxia

Question 17 of 20

18. Vital pulp procedures are all except

Apexogenesis

DPC

Apexification

IPC

Question 18 of 20

19. A 3 year old requires the extraction of a deciduous maxillary second molar. The local anesthetic technique of choice is

an infra-orbital block.

a tuberosity block plus subperiosteal infiltration of the mesio-buccal root.

buccal and palatal infiltration.

a posterior superior alveolar block.

Question 19 of 20

20. A mother brings a 9 year old child with pain in the right lower tooth. The mother gives a history that the child suffered multiple episodes of cold and fever in the recent past. On examination, the lower right deciduous first molar was found to have proximal caries. What is the first line of investigation?

Electric pulp testing

Take an IOPA radiograph

Thermal testing

Prepare a test cavity

Question 20 of 20