NRE Dental Step I MCQs

Etching is use of an acid to create microscopic surface roughness for adhesive bonding.

Matrix band is a temporary form used to support and contour restorative material.

Working length is the distance used to guide cleaning and shaping of a root canal.

Obturation is three-dimensional filling and sealing of a prepared root-canal system.

Apex locator is an electronic device used to estimate root-canal working length.

Pulpitis is inflammation of the dental pulp.

Reversible pulpitis is pulpal inflammation expected to resolve after removal of the irritant.

Irreversible pulpitis is pulpal inflammation unlikely to heal without endodontic treatment or extraction.

Rubber dam is an isolation system that improves moisture control and patient safety during dental procedures.

Etching is use of an acid to create microscopic surface roughness for adhesive bonding.

Matrix band is a temporary form used to support and contour restorative material.

Working length is the distance used to guide cleaning and shaping of a root canal.