A desensitizing agent used to reduce dentin sensitivity?

• A. Alginate
• B. Crown
• C. Desensitizer
• D. Onlay

Answer: (C)

Dentin sensitivity occurs when exposed dentin tubules transmit stimuli to nerves. A desensitizing agent is specifically formulated to lessen that sensitivity by either blocking the dentinal tubules or calming the nerve endings, reducing the transmission of sensory signals. The term “desensitizer” refers to products designed for this purpose, making it the correct choice.

Alginate is an impression material, not a desensitizing product; crowns and onlays are restorative restorations and don’t serve to reduce dentin sensitivity.