INBDE (Integrated National Board Dental Examination) Practice Exam

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Ace your INBDE with our comprehensive practice exam. Featuring detailed explanations, interactive flashcards, and a wide array of multiple-choice questions designed to mirror the real test. Get ready to surpass your expectations!

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What acts as the activator compound in self-cure composite?

HEMA
Benzoyl peroxide
Tertiary amines
Camphorquinone

The correct answer is: Tertiary amines

Tertiary amines act as the activator compound in self-cure composite resins. In this setting, tertiary amines usually react with a compound like benzoyl peroxide, which serves as the initiator, to start the polymerization reaction. This reaction helps in the setting of the composite material without the need for an external light source. HEMA (Choice A) is not an activator but is a hydrophilic monomer used to promote adhesion. Benzoyl peroxide (Choice B) is an initiator and not the primary activator in this context. Camphorquinone (Choice D) is a photoinitiator used in light-cured composite materials, not in self-cure composites.