RDAEF2 CORE EXAM SET 2025/2026 QUESTIONS WITH
SOLUTIONS GRADED A+
✔✔Which of the following anatomic features of the teeth help to maintain the position of
the dental arch and protects the tissues during chewing? - ✔✔Contours, Contacts, and
Embrasures
✔✔The ____ is the exact spot where adjacent teeth actually touch each other -
✔✔Contact point
✔✔A proper contact between adjacent teeth stabilizes the dental arches by -
✔✔Holding teeth in positive contact with each other
✔✔The crown of a tooth that is divided crosswise with the division being parallel to the
occlusal or incisal surface of the tooth has which of the following divisions? -
✔✔Occlusal 3rd, Middle 3rd, and Cervical 3rd
✔✔Who on the dental team is responsible for maintaining proper infection control
protocols? - ✔✔Dentist, Dental assistant, Dental hygienist, front office, anyone who
comes into contact with OPIM.
✔✔What does OPIM stand for? - ✔✔Other potentially infectious materials
✔✔What is the difference between sterilization and disinfection? - ✔✔Sterilization= free
of all viable microorganisms.
Disinfection=kills some, but not all bacteria.
✔✔What does asepsis mean? - ✔✔Free of disease causing agents ie;
bacteria,viruses,and other organisms.
✔✔What are the 3 classifications of instruments in preparation for reuse? - ✔✔Critical,
Semi-critical, Non Critical
✔✔What is the most common method of sterilization utilized today? - ✔✔The heat
method
✔✔What two articles of PPE must be changed after each patient? - ✔✔Mask and
Gloves
✔✔What items are considered PPE? - ✔✔Gloves,Face mask,Protective Eyewear, Face
shield,Reusable or disposable:gown,jacket,lab coat
, ✔✔What items should be places in a sharps container? -
✔✔Needle,Syringes,Scalpers,Lancets,Wires-including dental wires
✔✔Is it possible to sterilize a dental operatory and the equipment in it? - ✔✔No, but you
can disinfect it.
✔✔The act of spraying a surface (or wetting it) with disinfectant chemical and wiping it
dry is considered what type of action? - ✔✔Spray-Wipe method
✔✔Regulations require the use of heavy-duty utility gloves when using disinfectants-
what does this mean when you are cleaning and disinfecting a dental operatory? -
✔✔You must wear utility gloves
✔✔What is the difference between reusable PPE and disposal PPE and how are they
handled differently? - ✔✔Reusable PPE means that you and use it over and over after it
has been appropriately washed. Disposable PPE means that you dipose of it after each
use.
✔✔Masks are required for all treatment procedures-does this include treatment
procedures that do not involve a handpiece or rotary device? - ✔✔Yes
✔✔Permanent ______ are nonsuccedaneous teeth. - ✔✔Molars
✔✔What is the proper use for temporary cement? - ✔✔Provisional Restorations
✔✔What term describes the release of heat from a chemical reaction? - ✔✔Exothermic
Reaction
✔✔What is the primary use today for a Class I or traditional Glass Ionomer? - ✔✔As a
liner or base
✔✔What component of Zinc Oxide Eugenol cement has made it obsolete for use in
conjunction with composite resin? - ✔✔Carbolic Acid
✔✔What factor is true about hybrid Glass Ionomer Cement? - ✔✔Increased Bonding
✔✔T or F: the primary function of varnish/sealer is to cover dentinal tubules to reduce
the flow of unwanted substances in the pulp tissues. - ✔✔True
✔✔A matrix must be used to create a temporary proximal wall for which of the following
techniques restoration classification? - ✔✔Class I/V and Class II/IV
SOLUTIONS GRADED A+
✔✔Which of the following anatomic features of the teeth help to maintain the position of
the dental arch and protects the tissues during chewing? - ✔✔Contours, Contacts, and
Embrasures
✔✔The ____ is the exact spot where adjacent teeth actually touch each other -
✔✔Contact point
✔✔A proper contact between adjacent teeth stabilizes the dental arches by -
✔✔Holding teeth in positive contact with each other
✔✔The crown of a tooth that is divided crosswise with the division being parallel to the
occlusal or incisal surface of the tooth has which of the following divisions? -
✔✔Occlusal 3rd, Middle 3rd, and Cervical 3rd
✔✔Who on the dental team is responsible for maintaining proper infection control
protocols? - ✔✔Dentist, Dental assistant, Dental hygienist, front office, anyone who
comes into contact with OPIM.
✔✔What does OPIM stand for? - ✔✔Other potentially infectious materials
✔✔What is the difference between sterilization and disinfection? - ✔✔Sterilization= free
of all viable microorganisms.
Disinfection=kills some, but not all bacteria.
✔✔What does asepsis mean? - ✔✔Free of disease causing agents ie;
bacteria,viruses,and other organisms.
✔✔What are the 3 classifications of instruments in preparation for reuse? - ✔✔Critical,
Semi-critical, Non Critical
✔✔What is the most common method of sterilization utilized today? - ✔✔The heat
method
✔✔What two articles of PPE must be changed after each patient? - ✔✔Mask and
Gloves
✔✔What items are considered PPE? - ✔✔Gloves,Face mask,Protective Eyewear, Face
shield,Reusable or disposable:gown,jacket,lab coat
, ✔✔What items should be places in a sharps container? -
✔✔Needle,Syringes,Scalpers,Lancets,Wires-including dental wires
✔✔Is it possible to sterilize a dental operatory and the equipment in it? - ✔✔No, but you
can disinfect it.
✔✔The act of spraying a surface (or wetting it) with disinfectant chemical and wiping it
dry is considered what type of action? - ✔✔Spray-Wipe method
✔✔Regulations require the use of heavy-duty utility gloves when using disinfectants-
what does this mean when you are cleaning and disinfecting a dental operatory? -
✔✔You must wear utility gloves
✔✔What is the difference between reusable PPE and disposal PPE and how are they
handled differently? - ✔✔Reusable PPE means that you and use it over and over after it
has been appropriately washed. Disposable PPE means that you dipose of it after each
use.
✔✔Masks are required for all treatment procedures-does this include treatment
procedures that do not involve a handpiece or rotary device? - ✔✔Yes
✔✔Permanent ______ are nonsuccedaneous teeth. - ✔✔Molars
✔✔What is the proper use for temporary cement? - ✔✔Provisional Restorations
✔✔What term describes the release of heat from a chemical reaction? - ✔✔Exothermic
Reaction
✔✔What is the primary use today for a Class I or traditional Glass Ionomer? - ✔✔As a
liner or base
✔✔What component of Zinc Oxide Eugenol cement has made it obsolete for use in
conjunction with composite resin? - ✔✔Carbolic Acid
✔✔What factor is true about hybrid Glass Ionomer Cement? - ✔✔Increased Bonding
✔✔T or F: the primary function of varnish/sealer is to cover dentinal tubules to reduce
the flow of unwanted substances in the pulp tissues. - ✔✔True
✔✔A matrix must be used to create a temporary proximal wall for which of the following
techniques restoration classification? - ✔✔Class I/V and Class II/IV
