Quiz & flashcards

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1. In the FDI system, what is the upper left first molar?

   1. 16
   2. 26
   3. 36
   4. 46

2. Universal number 30 is…

   1. Lower right first molar
   2. Lower left first molar
   3. Upper right first molar
   4. Lower right second premolar

3. Which FDI number is a primary tooth?

   1. 47
   2. 55
   3. 18
   4. 32

4. Universal letter for the lower left primary second molar?

   1. J
   2. K
   3. T
   4. A

5. How many roots does an upper first premolar usually have?

   1. 1
   2. 2
   3. 3
   4. 4

6. The extra canal often found in the upper first molar is…

   1. MB2 in the mesiobuccal root
   2. A second palatal canal
   3. A distolingual canal
   4. A C-shaped canal

7. A lower first molar usually has…

   1. 3 roots
   2. 2 roots (mesial and distal)
   3. 1 root
   4. 4 roots

8. Which is the longest tooth in the mouth?

   1. Maxillary central incisor
   2. Maxillary canine
   3. Mandibular first molar
   4. Maxillary first premolar

9. Usually the first permanent tooth to erupt is…

   1. Upper central incisor
   2. Lower first molar or lower central incisor
   3. Upper canine
   4. Lower second premolar

10. Typical eruption age of the upper permanent canine?

    1. 6–7 years
    2. 8–9 years
    3. 11–12 years
    4. 17–21 years

11. How many primary teeth does a child have?

    1. 16
    2. 20
    3. 24
    4. 28

12. Which primary tooth usually erupts first?

    1. Upper central incisor
    2. Lower central incisor
    3. Lower first molar
    4. Upper canine

13. On an OPG, the patient’s right side appears…

    1. On the right of the image
    2. On the left of the image
    3. In the centre
    4. It depends on the machine

14. A small round radiolucency near the lower premolar apices is most likely…

    1. The mental foramen
    2. The incisive canal
    3. The maxillary sinus
    4. A dentigerous cyst

15. A dark band crossing the ramus on an OPG is usually…

    1. A fracture
    2. The pharyngeal airway
    3. The mandibular canal
    4. A cyst

16. Why is the mandibular canal important on a panoramic X-ray?

    1. It shows the pulp size
    2. It carries the inferior alveolar nerve
    3. It is the sinus floor
    4. It is the TMJ

17. A cavity on the mesial surface of a lower first molar is G.V. Black class…

    1. I
    2. II
    3. III
    4. V

18. Proximal caries of an incisor that involves the incisal angle is class…

    1. III
    2. IV
    3. V
    4. VI

19. ICDAS code 5 means…

    1. First visual change in enamel
    2. Dark shadow from dentine
    3. Distinct cavity with visible dentine
    4. Sound surface

20. Interdental CAL of 3–4 mm with no tooth loss is periodontitis stage…

    1. I
    2. II
    3. III
    4. IV

21. A patient smoking 15 cigarettes a day is graded at least…

    1. Grade A
    2. Grade B
    3. Grade C
    4. Smoking does not change the grade