15629 Smear Layer Terms and Definitions at www.MedicalGlossary.org

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Smear Layer

Definition: Adherent debris produced when cutting the enamel or dentin in cavity preparation. It is about 1 micron thick and its composition reflects the underlying dentin, although different quantities and qualities of smear layer can be produced by the various instrumentation techniques. Its function is presumed to be protective, as it lowers dentin permeability. However, it masks the underlying dentin and interferes with attempts to bond dental material to the dentin.
Notes: note category: in dent cavity prep; no qualif
Previously Indexed: Dental Cavity Preparation (1981-1991),Dental Pulp Cavity (1981-1991),Dentin (1981-1991)

Smear Layer Definitions and Terms

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