Which is an effect of fillers in composite is:
Fillers in composite
Generally between 30% to 70% by volume or 50% to 85% by weight of a composite
Benefits of Fillers
Reinforcement- compressive strength, tensile strength, modulus of elasticity (i.e., stiffness or rigidity), and toughness

Reduction of polymerization shrinkage/contraction
Reduction in thermal expansion and contraction
Control of workability/viscosity
Decreased water sorption
Imparting radiopacity
Increased thermal expansion.
Decreased thermal expansion.
Increased thermal contaction.
Increased polymerization shrinkage.