Science of Dental Materials MCQs

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.

Creep is time-dependent deformation of a material under a constant load.

Galvanic corrosion is electrochemical reaction between dissimilar metals in an electrolyte such as saliva.

Zinc phosphate cement is a traditional luting cement that does not chemically bond to tooth structure.

Resin-modified glass ionomer is a hybrid material combining an acid-base reaction with resin polymerisation.

Thermal expansion coefficient is a measure of dimensional change in a material with temperature.

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.