DANB CDA DANB CDA Dental Instruments and Equipment

Question 1

Which instrument is used to transfer restorative materials to the preparation site?

Accepted Answer

Plastic instrument

Answer

A plastic instrument (also called a composite placement instrument) is used to carry and place restorative materials such as amalgam or composite without bonding to them.

Question 2

What is the primary purpose of a burnisher in restorative dentistry?

Accepted Answer

To smooth and polish amalgam restorations

Answer

A burnisher is used to smooth and polish amalgam restorations and to adapt margins of metallic restorations to tooth structure.

Question 3

Which hand instrument is used to remove soft dentin and debris from a cavity preparation?

Accepted Answer

Spoon excavator

Answer

A spoon excavator has a rounded, spoon-shaped working end specifically designed to scoop out soft carious dentin and debris from cavity preparations.

Question 4

The autoclave sterilizes instruments using which combination of factors?

Accepted Answer

Steam, heat, and pressure

Answer

An autoclave uses saturated steam under pressure (typically 121°C at 15 psi) to achieve sterilization of dental instruments.

Question 5

What is the correct order of instrument processing before sterilization?

Accepted Answer

Clean → package → sterilize

Answer

Instruments must be cleaned first to remove debris and bioburden, then packaged, and finally sterilized so the steam or heat can penetrate the packaging.

DANB CDA Test Practice Test

DANB CDA Test Practice Test

DANB CDA DANB CDA Dental Instruments and Equipment