NEB Dental Standard 3 MCQs

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.

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.

Agonist is a ligand that binds to a receptor and activates it to produce a biological response.

Competitive antagonist is a reversible receptor blocker whose effect can be overcome by increasing agonist concentration.

First-pass metabolism is presystemic metabolism that reduces oral bioavailability before a drug reaches systemic circulation.