For composite restorative materials,the greater the filler content,the _____ the coefficient of thermal expansion (CTE),and the greater the resin content,the _____ the CTE.

Question

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For composite restorative materials,the greater the filler content,the lower the CTE,and the greater the resin content,the greater the CTE.Ideally,the coefficient of thermal expansion of the filling material would be the same as that of the tooth structure.In the case of composite,the CTE is greater and will undergo a greater change in dimension than will the adjacent tooth structure.

For Composite Restorative Materials,the Greater the Filler Content,the _____ the Coefficient