NRE Dental Step I MCQs

Incidence is the occurrence of new cases in a population at risk during a defined period.

Prevalence is the proportion of a population that has a condition at a specified time or period.

Sensitivity is the ability of a test to correctly identify people who have the disease.

Specificity is the ability of a test to correctly identify people who do not have the disease.

Relative risk is a ratio comparing disease risk in an exposed group with risk in an unexposed group.

Amalgam is a metallic restorative material formed by combining mercury with an alloy powder.

Composite resin is a tooth-coloured resin matrix reinforced with inorganic filler particles.

Glass ionomer cement is a material formed by an acid-base reaction that can chemically bond to tooth and release fluoride.

Alginate is an irreversible hydrocolloid commonly used for preliminary dental impressions.

Elastomeric impression material is a rubber-like material used for accurate dental impressions.

Gypsum product is a calcium-sulfate based material used to produce dental casts and dies.

Polymerisation shrinkage is volume reduction occurring when resin monomers form a polymer network.