INBDE (Integrated National Board Dental Examination) Practice Exam

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Study for the Integrated National Board Dental Examination with engaging quizzes and detailed multiple-choice questions. Each question comes with hints and explanations to ensure you grasp essential concepts. Prepare effectively for your dental career!

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What is used to dissolve GP during retreat?

  1. EDTA

  2. eugenol

  3. bleach

  4. chloroform

The correct answer is: chloroform

Chloroform is a commonly used solvent for dissolving gutta-percha (GP) during retreatment procedures. EDTA is used to remove smear layer and debris from the root canal walls, but it is not used to dissolve GP. Eugenol is a component of some temporary filling materials but is not used in retreatment procedures. Bleach is not used to dissolve GP, but it can be used as an irrigation solution to disinfect the canal.