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Endodontics · single question

Calcium hydroxide performs its endodontic function due to:

  1. An acidic pH of 2.5
  2. A neutral pH of 7
  3. A basic pH of 12.5
  4. Calcium hydroxide is not routinely used in endodontics
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Correct answer: C. A basic pH of 12.5

Calcium hydroxide has a highly basic pH of ~12.5, which is bactericidal against anaerobic organisms by denaturing bacterial proteins and inactivating LPS. Clinical uses: antimicrobial dressing, apexification, management of root resorption, and pulp capping.

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