Coupling agent between filler particle and resin is:: (A) Benzoyl peroxide, (B) Vinyl silane, (C) Benzoin ether, (D) Hydroquinone
Answer is B. Coupling agent : A bonding agent applied to the surfaces of reinforcing particles (filler) to ensure that they are chemically bonded to the resin matrix. Organo-silane compounds are the more common class of dental composite coupling agents. Although titanates and zirconates can be used as coupling agents, organosilanes—such as γ-methacryloxypropyl tri-methoxysilane are used most commonly.
Phillips 12 ed page no. 275,286