¨This is the elimination of any infected carious tooth
structure or faulty
restorative material that is left in the tooth after tooth preparation
¨Infected dentin-superficial layer
which is soft and leathery in consistency and light brown in color. It has a
high concentration of bacteria and collagen is irreversibly denatured .This
layer is not remineralizable and must be removed
¨Affected dentin-this is the deeper
layer which is hard in consistency and dark brown in color. It does not contain
bacteria and is reversibly denatured. Therefore this layer preserved
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