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ADA NBDE National Board Dental Part I

Category - NBDE

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In what stage of caries does the decay in dentin pass the halfway mark from the enamel (dentino-enamel junction) to the pulp.

Stage 1
Stage 2
Stage 3
Stage 4

Explanation

Answer: D - In stage 4 (grade 4) of caries, the decay in dentin has already passed the halfway mark from the enamel to the pulp. In chronic cases, the decay might spread until it reaches the pulp.

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ADA NBDE National Board Dental Part I

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ADA NBDE National Board Dental Part I

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