Operative+dentistry+mcqs+pdf+new Jun 2026

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Zirconia (yttria-stabilized tetragonal polycrystal) bonding to resin cement is best achieved by: A) HF acid etching (standard method) B) Airborne-particle abrasion with alumina + MDP-containing primer C) Silane alone D) Phosphoric acid etching operative+dentistry+mcqs+pdf+new

Which property allows a bulk-fill composite to be placed in 4 mm increments without increasing shrinkage stress? A) Higher filler load (>80% wt) B) Addition of thiol-ene monomers C) Reduced polymerization rate via modified camphorquinone D) Increased radio-opacity with ytterbium trifluoride operative+dentistry+mcqs+pdf+new