What is the coloring agent that makes plaque visible when applied to teeth?

• A. Disclosing Agent
• B. Sealant
• C. Topical Fluoride
• D. Adhere

Answer: (A)

Disclosing agents are coloring substances used to reveal dental plaque. They temporarily stain the plaque on teeth, making it easy to see where cleaning is needed. This helps you target brushing and flossing to the exact spots that are often missed, such as along the gumline or between teeth. After applying and rinsing, the colored areas show where plaque remains, typically in visible shades like blue, purple, or pink, and the stain fades after a short time with regular brushing and eating. Other items, like a sealant, act as protective coatings on grooves to prevent decay, and topical fluoride strengthens enamel—neither colors plaque.