MCQ Collection
NRE Dental Step I MCQs
Practice NRE Dental Step I questions with answers and explanations.
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Correct Answer: B. Fixed partial denture
Explanation:
Fixed partial denture is a tooth-supported fixed prosthesis replacing one or more missing teeth.
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Correct Answer: B. Reversible pulpitis
Explanation:
Reversible pulpitis is pulpal inflammation expected to resolve after removal of the irritant.
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Correct Answer: B. Irreversible pulpitis
Explanation:
Irreversible pulpitis is pulpal inflammation unlikely to heal without endodontic treatment or extraction.
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Correct Answer: C. Rubber dam
Explanation:
Rubber dam is an isolation system that improves moisture control and patient safety during dental procedures.
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Correct Answer: B. Etching
Explanation:
Etching is use of an acid to create microscopic surface roughness for adhesive bonding.
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Correct Answer: A. Matrix band
Explanation:
Matrix band is a temporary form used to support and contour restorative material.
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Correct Answer: C. Working length
Explanation:
Working length is the distance used to guide cleaning and shaping of a root canal.
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Correct Answer: A. Obturation
Explanation:
Obturation is three-dimensional filling and sealing of a prepared root-canal system.
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Correct Answer: C. Apex locator
Explanation:
Apex locator is an electronic device used to estimate root-canal working length.
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Correct Answer: D. Pit and fissure sealant
Explanation:
Pit and fissure sealant is a preventive resin material placed in susceptible occlusal grooves.
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Correct Answer: C. Pulpotomy
Explanation:
Pulpotomy is removal of coronal pulp while preserving healthy radicular pulp tissue.
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Correct Answer: C. Stainless-steel crown
Explanation:
Stainless-steel crown is a preformed full-coverage restoration commonly used for extensively damaged primary molars.