Restorative & Materials · single question
Which composite shade typically requires the LONGEST light-curing (photopolymerization) time?
Show answer and explanation
Correct answer: C. C1 (darker/more chromatic)
Darker, more opaque/chromatic shades (like C1) absorb and scatter more curing light and require longer exposure times to achieve adequate depth of cure. Lighter and translucent shades transmit curing light more readily and polymerize faster.
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