Pediatric Dentistry #2

1. A retardation or failure of differentiation of the maxillary mesoderm at and after 50mm stage of embryo, is thought to result in

mandibular dysostosis

cherubism

cleidocranial dysostosis

generalized cortical hyperostosis

Question 1 of 20

2. Which of the following space maintainers is/are most appropriate for a 4 year old child whose mandibular first primary molars have been extracted?

Lingual holding arch.

Distal shoe appliances

A removable appliance.

Bilateral band and loops.

Question 2 of 20

3. The disadvantages of clear resin when used as a sealant is

Low strength

Poor retention

Difficult to detect on recall examinations

Esthetically unpleasant

Question 3 of 20

4. The effects of constant mouth breathing include

mandibular incisor protrusion.

maxillary incisor retrusion.

anterior open bite.

expansion of the maxilla.

Question 4 of 20

5. Which of the following dental health recommendations is consistent with the general nutrition guidelines?

Brush your teeth well after snacks.

A piece of fruit and plain yogurt is an acceptable snack.

Diet soft drinks and potato chips are an acceptable snack.

Eat a bigger lunch and not snack.

Question 5 of 20

6. Which of the following sweeteners used in sugarless gum is most effective in preventing caries?

Mannitol.

Sorbitol.

Xylitol.

Glycerol.

Question 6 of 20

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

Make the habit unpleasant for the child

Act as a reminder for the child

Establish suction force on anterior segment

Distribute pressure to posterior teeth

Question 7 of 20

8. A subluxated tooth will have

mobility and displacement.

no mobility and displacement.

mobility and no displacement.

no mobility and no displacement.

Question 8 of 20

9. A 4 year old has a primary central incisor that is yellow but asymptomatic. The most probable diagnosis is

internal resorption.

pulpal calcification.

pulpal necrosis.

external resorption

Question 9 of 20

10. The most physiologic medium to transport an avulsed tooth is

ViaspanTM

Cold milk

Hanks balanced salt solution

Normal saline

Question 10 of 20

11. When is tooth enamel mineralisation complete

By the time enamel apposition is complete

At the time of eruption

Prior to eruption but after root formation has begun

At some time following eruption

Question 11 of 20

12. Why are implants not generally performed on a 12-year-old patient with congenitally missing lateral incisors?

Waiting for the crowns is too much of an esthetic issue with most children that age.

The gingival tissue will recede as the child gets older.

The patient would likely not be able to tolerate the surgical procedure.

The implants will appear to submerge as the child gets older.

Question 12 of 20

13. In primary molars, the cusp with the largest pulp horn is the

distolingual.

mesiolingual.

distobuccal.

mesiobuccal.

Question 13 of 20

14. A patient telephones and tells you he has just knocked out his front tooth but that it is still intact. Your instructions should be to

put the tooth in alcohol and come to your office immediately.

wrap the tooth in tissue and come to your office in a week's time.

put the tooth in water and come to your office at the end of the day.

place the tooth in milk and come to your office immediately.

Question 14 of 20

15. Your patient is 7 years old and has a very large, carious lesion on tooth T. What radiological factors should be used in determining the best treatment of choice between pulpotomy and primary endodontics?

All of the above

Furcation involvement

Internal root resorption

External root resorption

Question 15 of 20

16. Patients with down`s syndrome normally have

Brachycephalic skull

All of the above

IQ score above 80

Stiff muscles

Question 16 of 20

17. A four-year old child presents with acute pain associated with a primary mandibular second molar that has a large carious lesion with pulpal involvement. Radiographically, there is periapical pathology on the distal root. The child is very cooperative and is able to tolerate long appointments. What is the preferred choice of therapy for the primary mandibular second molar?

Incision and drainage

Extraction

Pulpotomy

Pulpectomy

Question 17 of 20

18. High viscosity saliva may lead to increased caries children. This statement is

Really true

Really false

Partially false

Partially true

Question 18 of 20

19. The enamel rods in the gingival third of primary teeth slope occlusally instead of cervically as in permanent teeth, and the interproximal contacts of primary teeth are broader and flatter than permanent teeth.

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

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

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

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

Question 19 of 20

20. N2O more than 30-40 percent causes

Ataxia

Amnesia

Diffusion hypoxia

Anoxia

Question 20 of 20