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ADA NBDE National Board Dental Part II

Category - NBDE II

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Which irrigating solution is a bis-biguanide antiseptic?

Sodium hypochlorite
Calcium hydroxide
Chelating agent
Chlorhexidine

Explanation

Answer: D - The irrigating solution that is a bis-biguanide antiseptic is chlorhexidine. The solution kills or inhibits microorganism, but lacks the ability to act as a solvent like sodium hypochlorite.

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ADA NBDE National Board Dental Part II

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ADA NBDE National Board Dental Part II

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