Deciduous teeth #WikiDentia

JavaScript isn't enabled in your browser, so this file can't be opened. Enable and reload.

1. Which of the following deciduous molars bears the greatest resemblance to a premolar

1 point

a) Maxillary first

b) Maxillary second

c) Mandibular first

d) Mandibular second

Clear selection

2. The largest mesiodistal diameter in primary dentition is:

1 point

a) Mandibular 1st molar

b) lower 2nd molar

c) Maxillary 2nd molar

d) None of the above .

Clear selection

3. Primary dentition period is:

1 point

a) From birth to 11 years

b) From 6 months to 11 years

c) From 6 months to 6 years

d) From 6 years to 11 years

Clear selection

4. How many cusps does the crown of the maxillary first primary molar have?

1 point

a) 2

b) 3

c) 4

d) 5

Clear selection

5. Which of the following has the maximum faciolingual diameter of the crown:

1 point

a) Deciduous maxillary 2nd molar

b) Deciduous maxillary 1st molar

c) Deciduous mandibular 2nd molar

d) Deciduous mandibular 1st molar

Clear selection

6. How many roots does a primary maxillary first molar have:

1 point

a) One

b) Two

c) Three

d) Four

Clear selection

7. The primary teeth that present the most outstanding morphologic deviations from permanent teeth are:

1 point

a) Central incisors

b) Mandibular first molar

c) Mandibular second molar

d) Canines

Clear selection

8. Roots of primary and secondary teeth are different in that the primary roots are more divergent and flaring. The other difference:

1 point

a) Primary roots show less accessory & lateral canals

b) Primary roots resorb more easily

c) Primary roots are shorter

d) None of the above

Clear selection

9. The primary lateral incisors begin to calcify about the:

1 point

a) 4th month of life

b) 4 th month in utero

c) 4th month in utero

d) 5 th month in utero

Clear selection

10. When viewed occlusally, a primary mandibular second molar closely resembles which of following mandibular teeth?

1 point

a) Permanent second molar

b) Permanent first molar

c) Second premolar

d) Primary first molar

Clear selection

11. In the majority of situations, the first deciduous tooth to erupt is the:

1 point

a) Mandibular central incisor

b) Mandibular first molar

c) Maxillary central incisor

d) Maxillary second molar

Clear selection

12. Pulp chambers and root canals in deciduous teeth:

1 point

a) Wide and deep

b) Shallow and narrow

c) Wide and narrow

d) Shallow and wide

Clear selection

13. Cervical bulge. True is

1 point

a) Enamel rods at cervical region directed occlusally

b) Results in constriction at cervical region

c) Is characteristic of deciduous teeth

d) All of the above

Clear selection

14. Primary teeth differ from permanent teeth in following aspects

1 point

a) Thickness of enamel and dentin

b) Pulp chambers are longer

c) Roots are flaring

d) All of the above

Clear selection

15. Which statement is correct about deciduous dentition?

1 point

a) Calcification of maxillary primary first premolar is completed at birth

b) Mandibular first molar erupts at one and half years of age

c) The crowns of primary dentition are more yellowish than permanent

d) The primary dentition is initiated at 10 th month in uterus

Clear selection

16. Transverse ridge is prominent on occlusal surface of which of the following deciduous teeth?

1 point

a) Mandibular first molar

b) Maxillary first molar

c) Mandibular second molar

d) Maxillary second molar

Clear selection

17. How many pulpal horns are there in the mandibular second primary molar?

1 point

a) 3

b) 6

c) 4

d) 5

Clear selection

18. The highest (longest) and sharpest cusp on the deciduous mandibular first molar is:

1 point

a) Mesiolingual

b) Distolingual

c) Mesiobuccal

d) Distobuccal

Clear selection

19. Cusp of carabelli can be considered a normal finding on:

1 point

a) Deciduous mandibular 1st molar

b) Deciduous maxillary 1st molar

c) Deciduous maxillary 2nd molar

d) Deciduous mandibular 2nd molar

Clear selection

20. Mesiodistal width is more than cervico-incisal length of crown in:

1 point

a) Permanent central incisors

b) Deciduous maxillary central incisors

c) Permanent maxillary canines

d) Permanent mandibular lateral incisors

Clear selection

21. With respect to their permanent successors the sum of the mesiodistal diameters of the first and second deciduous molars is generally.

1 point

a) Less

b) Greater

c) The same

d) Not related

Clear selection

22. Among the differences between teeth in the deciduous and the permanent dentition is that:

1 point

a) Buccal surfaces of the permanent molars are flatter

b) Cervical ridges are more pronounced in permanent molars

c) Root trunks of deciduous teeth are larger compared with their overall root lengths

d) Crowns of deciduous incisors are wider mesiodistally than their cervico incisal lengths

Clear selection

23. The direction of enamel rods in deciduous teeth is:

1 point

a) Same as permanent teeth

b) Inclined in an apical direction in the cervical third of crown

c) Inclined in an occlusal direction in the cervical third of crown

d) None of the above

Clear selection

24. During the development of a tooth, sound coalescence of the lobes results in

1 point

a) Grooves

c) Cusps

b) Fissures

d) All of the above

Clear selection

25. The deciduous tooth which does not have resemblance to any other teeth (deciduous or permanent) is

1 point

a) Maxillary first molar

b) Mandibular first molar

c) Maxillary 2nd molar

d) Mandibular canine

Clear selection

Submit

Clear form

Forms

This content is neither created nor endorsed by Google.