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ADA NBDE National Board Dental Part II

Category - NBDE II

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During an apexification procedure, calcium hydroxide is used for:

Bone degradation and retaining alar cartilage
Sterilizing instruments and oral cavity
Refining gutta percha and bacterial-clearing
Bone regeneration and anti-microbial effects

Explanation

Answer: D - During an apexification procedure, calcium hydroxide is used for bone regeneration and anti-microbial effects. Once mixed with water, a thin layer is placed on the tooth. However, calcium hydroxide is not permanently placed within the mouth, due to health risks when ingested. Ingestion can cause perforated esophagus and vomiting. If inhaled, the chemical can cause respiratory tract irritation, chemical bronchitis, and shortness of breath.

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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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