Question 368 · LDEK · Restorations — technique and errors
According to the Black’s classification the lowest C-factor (defining amount of shrinkage of the material) is observed in the cavities of:
- A. class I.
- B. class II.
- C. class III.
- D. class IV.
- E. class V.
Hint
The C-factor is bonded surface divided by unbonded surface, so look for the cavity with the fewest walls and the largest free surface.
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