Pediatric Dentistry #7

1. The dental pulp first become influenced by dental caries when the carious lesion reaches

A point 1 -2 mm from the pulp

The dental pulp

The DE junction

Halfway through the dentin

Question 1 of 20

2. A CONTRAINDICATION for a pulpectomy on a primary molar is

less than 1/3 of the root structure remaining.

pulpal hyperemia.

pulp tissue necrosis.

spontaneous nocturnal pain.

Question 2 of 20

3. Amalgam is most often the restorative material of choice for primary teeth. The most important modification in its use for children is in the

Use of a rubber dam

Use of a zinc free alloy

Cavity preparation

Placement of matrix bands

Question 3 of 20

4. What is the reason for longer etching time required in case of children:

Enamel is aprismatic and wavy in orientation

Denser enamel in case of children

Widely spaced enamel rods in oblique orientation

Less cooperation in the procedure

Question 4 of 20

5. A 20-month-old female presents with her mother to your office for her first check-up. Her mother is concerned because her daughter only has a few erupted teeth. Upon examining the patient, which teeth should you expect to find?

Primary centrals, laterals, first molars, second molars

Primary centrals and laterals only

Primary centrals, laterals, first molars, canines

Primary centrals, laterals, canines

Question 5 of 20

6. Chronic pulpal involvement in a deciduous molar is first manifested as

Widening of pdl in apical 1/3 rd

Radiolucency at apex of root

Radiolucency in furcation area

Normal pulp

Question 6 of 20

7. Formocresol has been shown to have a very good success rate when used as a medicament for pulpotomy procedures. Why is there continued interest to find another medicament that performs as well as or better than formocresol?

It has been demonstrated that formocresol may cause failure to develop adequate lung capacity in children.

Application of formocresol is a clinically timeconsuming procedure.

Formocresol is toxic and there is possible bloodborne spread to vital organs.

It has been demonstrated that formocresol may cause spontaneous abortion.

Question 7 of 20

8. A purulent lesion in the facial vestibule of an 8 year old patient is most likely

An infected apthous ulcer

An odontogenic fistula

An isolated herpetic lesion

A pyogenic granuloma

Question 8 of 20

9. Difficult to seal teeth include all the following except

The partially erupted permanent second molar

The partially erupted premolar

The fully erupted premolar

The partially erupted permanent first molar

Question 9 of 20

10. Which of the following is a contraindication to the use of an electric pulp tester

A patient with recent trauma

A patient with a recent MI

A pediatric patient

A patient with a cardiac pacemaker

Question 10 of 20

11. A disease process is characterized by painful, bleeding gingival tissue, punched out erosions covered by gray pseudomembrane, blunting of interproximal papillae, and a fetid odor. Treatment usually comprises debridement, mouth rinses, and antibiotics. This description is associated with which of the following conditions that may exist in teenagers?

Primary herpetic gingivostomatitis

Severe gingivitis

Acute necrotizing ulcerative gingivitis

Aggressive periodontitis

Question 11 of 20

12. Which of the following is not a function of crib?

Establish suction force on anterior segment

Make the habit unpleasant for the child

Distribute pressure to posterior teeth

Act as a reminder for the child

Question 12 of 20

13. Which of the following is the most recommended endodontic obturating material for deciduous teeth?

Zoe

Ca(oh)2 paste

Kri paste

Maisto's paste

Question 13 of 20

14. Primary teeth are lighter than permanent teeth because

Because of contrast with the adjacent tissue

Lighter color of enamel

Thin dentin in primary teeth

Difference in crystalline structure makes refractive index different

Question 14 of 20

15. The number of fontanelles present at birth is

Question 15 of 20

16. An advantage of the rubber dam is that it

Reduces the necessity for a carefully carved cervical margin

Aids in the management of child behaviour

Muffles any screams the child may emit

Enables the operator to salvage silver scraps

Question 16 of 20

17. The most likely cause of loss of a pit and fissure sealant is the

moisture contamination during placement.

placement of the sealant over enamel caries.

use of a chemical-cured sealant.

the failure to use primer prior to its placement.

Question 17 of 20

18. Ankylosis of primary teeth is most frequently observed in

.mandibular incisors.

mandibular molars.

maxillary canines

maxillary molars.

Question 18 of 20

19. Which of these is an indication for Formocresol Pulpotomy:

Inflammation restricted to coronal pulp

Uncontrollable hemorrhage from pulp

Necrotic pulp

Inflammation extending to radicular pulp

Question 19 of 20

20. Hyposecretion of thyroid hormone during infancy results in

Gigantism

Cretinism

Graves disease

Myxedema

Question 20 of 20