Percolation allows the ingress of bacteria and oral fluids and may lead to recurrent caries,staining,and pulpal irritation.Percolation is the repeated shrinkage and expansion of the restoration during ingestion of cold and hot fluids,producing the opening and closing of a gap between the restoration and the tooth surface.

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What Is Percolation

Question 7

Multiple Choice

What is percolation?

A) The rate at which heat flows through a material
B) A form of chemical rather than mechanical retention
C) Something that helps seal the interface between tooth and restorative material
D) Something that allows the ingress of bacteria and oral fluids and may lead to recurrent caries,staining,and pulpal irritation

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