Shade selection for composite restoration

# Shade selection for composite restoration in anterior teeth should be done:
 A. After end of etching
 B. After prolonged drying
 C. Before prolonged drying
 D. After applying bonding agent

The correct answer is C. Before prolonged drying.

For shade selection, the teeth should be moist and should not be dehydrated. A dehydrated tooth gives a whiter appearance due to scattering and reflection of light. Bleaching procedures if any should be done before shade selection.