How deep is the smear layer, as described in dental context?

The smear layer in a dental context is a fine layer that forms on the surface of dentin after dental procedures such as cavity preparation. It is typically composed of organic and inorganic debris and can affect the bonding of dental materials. The thickness of the smear layer is generally recognized to range from 1 to 5 micrometers, making the choice of 1-5 µ the most accurate representation of its depth.

This layer is significant because it can influence the success of bonding systems used in restorative dentistry. Understanding the characteristics and depth of the smear layer is crucial for dental practitioners in optimizing adhesive strategies.