NRE Dental Step I MCQs

Panoramic radiograph is a broad extraoral image displaying both jaws and surrounding structures.

Sialolithiasis is formation of a calcified obstruction within a salivary duct or gland.

Periapical radiolucency is a radiographic dark area near a tooth apex that may reflect inflammatory periapical disease.

Bitewing radiograph is an intraoral image useful for detecting interproximal caries and assessing crestal bone.

Gingivitis is inflammation of gingiva without clinical attachment loss.

Periodontitis is inflammatory destruction of tooth-supporting tissues with attachment and bone loss.

Clinical attachment level is the distance from the cementoenamel junction to the base of the periodontal pocket.

Bleeding on probing is a clinical sign of gingival inflammation elicited by gentle probing.

Scaling is mechanical removal of plaque, calculus and deposits from tooth surfaces.

Root planing is instrumentation intended to produce a biologically compatible root surface.

Furcation involvement is periodontal destruction extending into the root-dividing area of a multirooted tooth.

Leukoplakia is a predominantly white oral plaque that cannot be characterised as another definable lesion after evaluation.