Question

Which of the following does NOT impart desensitizing properties to dental products?

• A. \( \text{Potassium chloride} \)
• B. \( \text{Strontium chloride} \)
• C. \( \text{Zinc chloride} \)
• D. \( \text{Potassium nitrate} \)

Hint:

Think about the common ions associated with nerve sensitivity (potassium) and tubule blockage/remineralization (strontium). Zinc's role is more related to oral hygiene and reducing bacterial growth.

Answer 1

The Correct Option is C

Potassium chloride, strontium chloride, and potassium nitrate are commonly used in dental products for their desensitizing properties. Potassium ions work by blocking nerve transmission in the dentinal tubules, reducing sensitivity to stimuli. Strontium ions can also block dentinal tubules and may promote remineralization. Zinc chloride, on the other hand, is primarily used in dental products for its astringent and antimicrobial properties, and it does not have significant desensitizing effects.