Composite Filler Content — NDEB AFK MCQ
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Correct answer: A — Increased compressive strength, increased wear resistance, and decreased polymerisation shrinkage
Increasing the filler content (filler loading) of a composite resin improves compressive strength, flexural strength, elastic modulus, hardness, wear resistance, and radiopacity while reducing polymerisation shrinkage, coefficient of thermal expansion, and water sorption. Modern nanohybrid composites achieve filler loadings of 75-85% by weight. However, very high filler content can reduce handling properties (increased viscosity) and make polishing more difficult.
Reference: Anusavice – Phillips' Science of Dental Materials, 13th ed., 2022