Dual-Cure Material Definition — NDEB AFK MCQ
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Correct answer: B — A material that can set through both light-initiated polymerisation and self-curing (chemical) polymerisation
Dual-cure dental materials (e.g., dual-cure resin cements, RMGIC, some core build-up materials) undergo both light-initiated polymerisation (immediate command set where light can reach) and chemical/self-cure polymerisation (slower set in areas where light cannot penetrate). This is essential for materials used in deep areas (under opaque ceramic crowns, in deep canals for post cementation) where light transmission is insufficient for complete light curing. The self-cure component ensures complete polymerisation throughout the material.
Reference: Anusavice – Phillips' Science of Dental Materials, 13th ed., 2022