During SDF application, what precaution should be followed to avoid soft tissue irritation?

During SDF application, what precaution should be followed to avoid soft tissue irritation?

• A. Be careful not to touch intra- or extraoral soft tissues
• B. Ignore soft tissues and proceed
• C. Only touch enamel edges
• D. Rinse the area with water immediately

Answer: (A)

Protect soft tissues during SDF application because this agent can irritate mucosa and stain if it touches lips, cheek, tongue, or gingiva. The key practice is to isolate and shield the surrounding tissues while placing the material. Use cotton rolls or a cheek retractors to keep the area dry, and apply the SDF with a small applicator directly to the lesion, avoiding contact with soft tissues. If any excess touches the mucosa, blot and remove it promptly and rinse if needed; but the main goal is to prevent contact in the first place.

Protect soft tissues during SDF application because this agent can irritate mucosa and stain if it touches lips, cheek, tongue, or gingiva. The key practice is to isolate and shield the surrounding tissues while placing the material. Use cotton rolls or a cheek retractors to keep the area dry, and apply the SDF with a small applicator directly to the lesion, avoiding contact with soft tissues. If any excess touches the mucosa, blot and remove it promptly and rinse if needed; but the main goal is to prevent contact in the first place.