ACJ Quiz – Crowns – ConfiDentist

ACJ Quiz - Crowns

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1. What option can explain the crown of the tooth # 1.4?

A: acceptable PFM crown

B: defective PFM crown

C: Acceptable zirconia/ full metal crown

D: defective zirconia/ full metal crown

E: full porcelain crown (Emax crown)

F: PFM bridge

G: zirconia/ full metal bridge

H: connected crowns

I: none of the above

PFM crowns has a metal coping that is opaque and a more radiolucent porcelain over it

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2. What option can be selected for the X ray bellow?

A: acceptable PFM crown

B: defective PFM crown

C: Acceptable zirconia/ full metal crown

D: defective zirconia/ full metal crown

E: full porcelain crown (Emax crown)

F: PFM bridge

G: zirconia/ full metal bridge

H: connected crowns

I: none of the above

as we want to select one option, F is the most correct option, but in multi answers you can also select PFM crown, as it is a part of a bridge. Remember that a bridge should always have a pontic.

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3. What option can explain the crown of the tooth #3.6?

A: acceptable PFM crown

B: defective PFM crown

C: Acceptable zirconia/ full metal crown

D: defective zirconia/ full metal crown

E: full porcelain crown (Emax crown)

F: PFM bridge

G: zirconia/ full metal bridge

H: connected crowns

I: none of the above

this is a PFM crown and recurrent caries on distal

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4. What option can explain the crown of the tooth #4.7?

A: acceptable PFM crown

B: defective PFM crown

C: Acceptable zirconia/ full metal crown

D: defective zirconia/ full metal crown

E: full porcelain crown (Emax crown)

F: PFM bridge

G: zirconia/ full metal bridge

H: connected crowns

I: SS Crown

J: none of the above

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5. What option can explain the crown of the tooth #2.6?

A: acceptable PFM crown

B: defective PFM crown

C: Acceptable zirconia/ full metal crown

D: defective zirconia/ full metal crown

E: full porcelain crown (Emax crown)

F: PFM bridge

G: zirconia/ full metal bridge

H: connected crowns

I: SS Crown

J: none of the above

this is a PFM crown with recurrent caries

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6. What option can explain the crowns in the X ray bellow?

A: acceptable PFM crown

B: defective PFM crown

C: Acceptable zirconia/ full metal crown

D: defective zirconia/ full metal crown

E: full porcelain crown (Emax crown)

F: PFM bridge

G: zirconia/ full metal bridge

H: connected crowns

I: SS Crown

J: none of the above

SS crowns are mainly being used for primary teeth, or as a temporary for permanent teeth

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7. What option can explain the crown of the tooth #2.1?

A: acceptable PFM crown

B: defective PFM crown

C: Acceptable zirconia/ full metal crown

D: defective zirconia/ full metal crown

E: full porcelain crown (Emax crown)

F: PFM bridge

G: zirconia/ full metal bridge

H: connected crowns

I: SS Crown

J: none of the above

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8. What option can explain the crown of the tooth #4.6?

A: acceptable PFM crown

B: defective PFM crown

C: Acceptable zirconia/ full metal crown

D: defective zirconia/ full metal crown

E: full porcelain crown (Emax crown)

F: PFM bridge

G: zirconia/ full metal bridge

H: connected crowns

I: SS Crown

J: none of the above

full metal or Zirconia crowns are identical in X rays. They are completely opaque in the X ray (like amalgam restorations) but have a smooth margins

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9. What option can explain the restoration on the Xray bellow?

A: acceptable PFM crown

B: defective PFM crown

C: Acceptable zirconia/ full metal crown

D: defective zirconia/ full metal crown

E: full porcelain crown (Emax crown)

F: PFM bridge

G: zirconia/ full metal bridge

H: connected crowns

I: SS Crown

J: none of the above

this is a cantilever bridge. Also as discussed before, if multiple options could be chosen the option a was also correct.

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10. What option can explain the restoration on the implant?

A: acceptable PFM crown

B: defective PFM crown

C: Acceptable zirconia/ full metal crown

D: defective zirconia/ full metal crown

E: full porcelain crown (Emax crown)

F: PFM bridge

G: zirconia/ full metal bridge

H: connected crowns

I: SS Crown

J: none of the above

this is an implant supported PFM crown and acceptable, it seems over contour but it is the best crown that can be made over this type of implant

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11. What option can be selected for the crown over the tooth # 2.6?

A: acceptable PFM crown

B: defective PFM crown

C: Acceptable zirconia/ full metal crown

D: defective zirconia/ full metal crown

E: full porcelain crown (Emax crown)

F: PFM bridge

G: zirconia/ full metal bridge

H: connected crowns

I: SS Crown

J: none of the above

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12. What option can be selected for the crown over the tooth #3.7?

A: acceptable PFM crown

B: defective PFM crown

C: Acceptable zirconia/ full metal crown

D: defective zirconia/ full metal crown

E: full porcelain crown (Emax crown)

F: PFM bridge

G: zirconia/ full metal bridge

H: connected crowns

I: SS Crown

J: none of the above

) the crown is completely opaque and is defective on the mesial

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13. What option can be selected for the restoration on the lower jaw?

A: acceptable PFM crown

B: defective PFM crown

C: Acceptable zirconia/ full metal crown

D: defective zirconia/ full metal crown

E: full porcelain crown (Emax crown)

F: PFM bridge

G: zirconia/ full metal bridge

H: connected crowns

I: SS Crown

J: none of the above

X ray shows a PFM bridge from tooth # 3.4 to tooth # 3.7

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14. What option can be selected for the crown over the tooth #3.5?

A: acceptable PFM crown

B: defective PFM crown

C: Acceptable zirconia/ full metal crown

D: defective zirconia/ full metal crown

E: full porcelain crown (Emax crown)

F: PFM bridge

G: zirconia/ full metal bridge

H: connected crowns

I: SS Crown

J: none of the above

on the distal the radiolucency is CBO and the crown is acceptable

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15. What option can be selected for the crown over the tooth # 3.7?

A: acceptable PFM crown

B: defective PFM crown

C: Acceptable zirconia/ full metal crown

D: defective zirconia/ full metal crown

E: full porcelain crown (Emax crown)

F: PFM bridge

G: zirconia/ full metal bridge

H: connected crowns

I: SS Crown

J: none of the above

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16. What option can be selected for the crown over the tooth #4.7?

A: acceptable PFM crown

B: defective PFM crown

C: Acceptable zirconia/ full metal crown

D: defective zirconia/ full metal crown

E: full porcelain crown (Emax crown)

F: PFM bridge

G: zirconia/ full metal bridge

H: connected crowns

I: SS Crown

J: none of the above

there is recurrent caries on mesial

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17. What option can be selected for the crown over the tooth # 4.6?

A: acceptable PFM crown

B: defective PFM crown

C: Acceptable zirconia/ full metal crown

D: defective zirconia/ full metal crown

E: full porcelain crown (Emax crown)

F: PFM bridge

G: zirconia/ full metal bridge

H: connected crowns

I: SS Crown

J: none of the above

this is a full coverage Emax crown over composite build up and a fiber post

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18. What option can be selected for the crown over the tooth # 1.5?

A: acceptable PFM crown

B: defective PFM crown

C: Acceptable zirconia/ full metal crown

D: defective zirconia/ full metal crown

E: full porcelain crown (Emax crown)

F: PFM bridge

G: zirconia/ full metal bridge

H: connected crowns

I: SS Crown

J: none of the above

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19. What option can be selected for the crown over the tooth # 1.6?

A: acceptable PFM crown

B: defective PFM crown

C: Acceptable zirconia/ full metal crown

D: defective zirconia/ full metal crown

E: full porcelain crown (Emax crown)

F: PFM bridge

G: zirconia/ full metal bridge

H: connected crowns

I: SS Crown

J: none of the above

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20. What option can be selected for the crown over the tooth # 4.6?

A: acceptable PFM crown

B: defective PFM crown

C: Acceptable zirconia/ full metal crown

D: defective zirconia/ full metal crown

E: full porcelain crown (Emax crown)

F: PFM bridge

G: zirconia/ full metal bridge

H: connected crowns

I: SS Crown

J: none of the above

there is a porcelain chipping on the crown # 4.6

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21. What option can be selected for the restoration on upper jaw?

A: acceptable PFM crown

B: defective PFM crown

C: Acceptable zirconia/ full metal crown

D: defective zirconia/ full metal crown

E: full porcelain crown (Emax crown)

F: PFM bridge

G: zirconia/ full metal bridge

H: connected crowns

I: SS Crown

J: none of the above

this is a PFM bridge with open margins on tooth # 1.6

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22. What option can be selected for the crown over the implant?

A: acceptable PFM crown

B: defective PFM crown

C: Acceptable zirconia/ full metal crown

D: defective zirconia/ full metal crown

E: full porcelain crown (Emax crown)

F: PFM bridge

G: zirconia/ full metal bridge

H: connected crowns

I: SS Crown

J: none of the above

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23. What option can be selected for the restoration on lower jaw?

A: acceptable PFM crown

B: defective PFM crown

C: Acceptable zirconia/ full metal crown

D: defective zirconia/ full metal crown

E: full porcelain crown (Emax crown)

F: PFM bridge

G: zirconia/ full metal bridge

H: connected crowns

I: SS Crown

J: none of the above

for connected crowns we should see the opaque connectors and there is no pontic.

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24. What option can be selected for the crown over the tooth # 2.7?

A: acceptable PFM crown

B: defective PFM crown

C: Acceptable zirconia/ full metal crown

D: defective zirconia/ full metal crown

E: full porcelain crown (Emax crown)

F: PFM bridge

G: zirconia/ full metal bridge

H: connected crowns

I: SS Crown

J: none of the above

there are open margins on mesial and distal

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25. What option can be selected for the crown over the implant?

A: acceptable PFM crown

B: defective PFM crown

C: Acceptable zirconia/ full metal crown

D: defective zirconia/ full metal crown

E: full porcelain crown (Emax crown)

F: PFM bridge

G: zirconia/ full metal bridge

H: connected crowns

I: SS Crown

J: none of the above

this is an implant supported Zirconia/ Full metal crown

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26. What option can be selected for the crown over the tooth # 4.7?

A: acceptable PFM crown

B: defective PFM crown

C: Acceptable zirconia/ full metal crown

D: defective zirconia/ full metal crown

E: full porcelain crown (Emax crown)

F: PFM bridge

G: zirconia/ full metal bridge

H: connected crowns

I: SS Crown

J: none of the above

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27. What option can be selected for the restoration on the upper jaw?

A: acceptable PFM crown

B: defective PFM crown

C: Acceptable zirconia/ full metal crown

D: defective zirconia/ full metal crown

E: full porcelain crown (Emax crown)

F: PFM bridge

G: zirconia/ full metal bridge

H: connected crowns

I: SS Crown

J: none of the above

there is a cantilever bridge on the upper jaw that is considered as PFM bridge, this can also be considered as connected crowns but the best option is PFM bridge

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28. What option can be selected for the crown over posterior implant?

A: acceptable PFM crown

B: defective PFM crown

C: Acceptable zirconia/ full metal crown

D: defective zirconia/ full metal crown

E: full porcelain crown (Emax crown)

F: PFM bridge

G: zirconia/ full metal bridge

H: connected crowns

I: SS Crown

J: none of the above

this is a defective Full metal/zirconia with open margin

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29. What option can be selected for the crown over the tooth # 3.6?

A: acceptable PFM crown

B: defective PFM crown

C: Acceptable zirconia/ full metal crown

D: defective zirconia/ full metal crown

E: full porcelain crown (Emax crown)

F: PFM bridge

G: zirconia/ full metal bridge

H: connected crowns

I: SS Crown

J: none of the above

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30. What option can be selected for the crown over the tooth # 1.6?

A: acceptable PFM crown

B: defective PFM crown

C: Acceptable zirconia/ full metal crown

D: defective zirconia/ full metal crown

E: full porcelain crown (Emax crown)

F: PFM bridge

G: zirconia/ full metal bridge

H: connected crowns

I: SS Crown

J: none of the above

full porcelain crowns (Emax and Feledespatic porcelain crowns) are most commonly less opaque than the composite core under it. The cement line can be very helpful in diagnisung them

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31. What option can be selected for the crown over the teeth # 2.4 and 2.5?

A: acceptable PFM crown

B: defective PFM crown

C: Acceptable zirconia/ full metal crown

D: defective zirconia/ full metal crown

E: full porcelain crown (Emax crown)

F: PFM bridge

G: zirconia/ full metal bridge

H: connected crowns

I: SS Crown

J: none of the above

both crowns are full porcelain and you can see the excess cement on mesial of the tooth # 2.6 as well

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32. What option can be selected for the restoration on the upper jaw?

A: acceptable PFM crown

B: defective PFM crown

C: Acceptable zirconia/ full metal crown

D: defective zirconia/ full metal crown

E: full porcelain crown (Emax crown)

F: PFM bridge

G: zirconia/ full metal bridge

H: connected crowns

I: SS Crown

J: none of the above

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33. What option can be selected for the restoration of the upper jaw?

A: acceptable PFM crown

B: defective PFM crown

C: Acceptable zirconia/ full metal crown

D: defective zirconia/ full metal crown

E: full porcelain crown (Emax crown)

F: PFM bridge

G: zirconia/ full metal bridge

H: connected crowns

I: SS Crown

J: none of the above

this is a PFM connected crowns over implants

Your score is

The average score is 27%