Pedodontics #2 – Unidontia

1. Pulp extirpation in primary teeth is mechanically difficult because of

Sensitivity of primary pulps

Lack of cooperation of children

Tortuous anatomy & branching of canals

All of the above

2. All of the following statements are true except:

The primary teeth are darker in color than the permanent teeth

In general, the crowns of primary teeth are more bulbous and constricted than the permanent counterpart

The pulp cavities are proportionately larger in the primary teeth

The crown surfaces of all primary teeth are much smoother than the permanent teeth

3. Your patient is 8 years old. Teeth #8 and #9 have approximately 50% of their crowns erupted. One month ago, the patient fell from a skateboard and hit teeth #8 and #9 on the sidewalk. The radiograph today shows open apices of these teeth, normal PDL, and no apparent periapical radiolucency. The patient has no reaction to electrical pulp tests. What is your treatment of choice?

Calcium hydroxide pulpotomy

Calcium hydroxide apexification technique

Formocresol apexification technique

Reappoint for exam and radiographs in 6 weeks

4. The most successful treatment for a vital primary second molar with a large carious pulp exposure is

Pulp capping with calcium Hydroxide

Indirect pulp capping

Pulpotomy with formacresol

Pulpotomy with calcium hydroxide

5. Three different variations in the appearance of pits and fissures in crosssection include all of the following except

I type

S type

U type

V type

6. Frankel behavior is divided into how many numbers

7. It is best to use which of the following for a topical fluoride application in the office for a patient that has porcelain, glass ionomer or composite restorations?

Neutral sodium fluoride

Stannous fluoride

Acidulated fluoride (apf) solutions

None of the above

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

Widening of pdl in apical 1/3 rd

Radiolucency in furcation area

Radiolucency at apex of root

Normal pulp

9. Difficult to seal teeth include all the following except

The partially erupted permanent second molar

The partially erupted permanent first molar

The partially erupted premolar

The fully erupted premolar

10. Why are rounded internal line angles desirable in the preparation of amalgam restorations in primary teeth?

They decreases internal stresses in the restorative material

They increase resistance

They increase retention

They conserve tooth structure

11. Which property of pit and fissure sealant is most important?

Low volatility

Thermal conductivity higher than teeth

Moderate solubility and water sorption

Adequate working time

12. First sign of formocresol pulpotomy failure is:

Internal resorption

Bleeding

Pain

Discoloration

13. Localized aggressive periodontitis in the primary dentition is seen most commonly in the primary molar area. It is most common in Asian children.

The first statement is true and the second statement is true.

The first statement is true and the second statement is false.

The first statement is false and the second statement is false.

The first statement is false and the second statement is true.

14. Which of the following is the most likely cause pulpal necrosis following trauma to a tooth?

Calcific metamorphosis

Dilaceration

Ankylosis

Pulpal hyperemia

15. On the health history form, the mother of a 6-year-old new patient notes that the child is moderately mentally challenged. The dentist should _____.

Refer to a pediatric dentist

Use restraints after obtaining informed consent

Use a Tell-Show-Do technique of behavior management

Use conscious sedation

16. Which of the following are advantages a light cured materials over chemical cure sealants?

Better physical and mechanical properties

Less chance of incorporation of air bubble

All of the above

Working time is longer

17. A lady with an Infant reported to clinic with the complaint of white teeth like structure, at the level of gingiva in mandibular anterior region. What should dentist do?

Extract the structure under GA

Reassure the parents as root will develop later

Selective grinding & let it remain

Extract it under la

18. A child starts to hold his head stable at what age:

18-20 months

11-12 months

3-4 months

6-7 months

19. Differences between child and adult patient are

Physical, emotional and psychological development

Dentist to the patient relationship

Dentist to the parent relationship

Both (a) and (b)

20. Reward for a child is

Will not affect the behaviour of the child

Promise after

Promised before & not given later

Promise before & give later

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