What is a silver antimicrobial dressing?

Ionic Ag added to a wound covering slowly releases the active ingredient upon activation by exudate or bacteria. This sustained delivery eliminates the risk of toxicity to the wound and surrounding tissue. It kills bacteria and does not allow it to form chemical bonds to multiply. It also acts as a barrier to harmful organisms like MRSA. The appearance of an Ag application is set apart from most other wound coverings because of its gray color. Although many manufacturers have the external side of the wound covering colored differently, the dressing that faces the wound is always gray.

When should silver dressings be used?

The increasing resistance of bacteria to antibiotic treatments helps make Ag a viable option to treat infected wounds. Silver acts as a topical antiseptic rather than as a true antibiotic. It works as an antimicrobial, killing, or preventing the reproduction of bacteria, fungi, and other harmful microorganisms. Because of its antiseptic nature, silver has a low risk of bacterial resistance. Bacterial resistance to antibiotics is a growing problem that limits the options available to treat infectious wounds. Dressings impregnated with Ag aid with treating infectious and colonized wounds. Wounds in which there is a heavy biofilm environment that requires treatment with a semi-occlusive dressing to form a warm and moist healing environment. The selection of an appropriate wound dressing should be based on an assessment of the wound and an understanding of properties of various wound dressings. Commonly used wound dressings can be categorized as moisture-retentive and antimicrobial-impregnated dressings, with subtypes of dressings in each category being appropriate in various clinical scenarios. The most appropriate dressing type may change as the wound heals.