Significance of Smear layer
The smear layer is a superficial layer of debris formed on the root surface following dental instrumentation. It can hinder cell attachment, tissue regeneration, and healing, acting as a barrier to fluid movement and bonding. Often created during periodontal treatments, this layer can obstruct effective disinfection and the efficacy of antibacterial agents in root canal procedures. Consequently, the smear layer is targeted for removal to improve outcomes in various dental treatments and promote periodontal healing.
Synonyms: Biofilm
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The concept of Smear layer in scientific sources
The keyphrase "Smear layer" describes a debris layer formed on dentin during dental procedures, which impacts disinfection, sealing, and antibacterial effectiveness by obstructing fluid movement and bonding within root canals.
From: The Malaysian Journal of Medical Sciences
(1) A thin layer of debris formed on cut dentine surfaces that can significantly affect the permeability of dentine.[1]