DANB GC STUDY GUIDE EXAM
QUESTIONS AND DETAILED ANSWERS.
EXPERT VERIFIED FOR GUARANTEED
PASS.
Explain when dry heat, chemical vapor, ethylene oxide gas, and steam autoclave sterilization
methods would be used - ANS 1. Dry Heat
Used for moisture-sensitive but heat-stable items like glassware, metal instruments, powders,
and oils. Not for plastics or rubber.
2. Chemical Vapor
Used for heat-stable instruments prone to rust or corrosion, such as dental handpieces.
Requires good ventilation due to chemical fumes.
3. Ethylene Oxide Gas (EtO)
Used for heat- and moisture-sensitive instruments, including plastics, electronics, and
complex devices. Long cycle; used in hospitals or manufacturers.
4. Steam Autoclave
Used for heat- and moisture-tolerant items like metal surgical tools and textiles. Most
common method; not for heat-sensitive materials.
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
,what type of gloves should be worn when handlin dirty instruments - ANS utility gloves
most effective way to prevent cross contamination in dental office - ANS proper hand
hygiene
what is the correct hve tip positioning during a procedure? - ANS 45 degrees
which type of waste includes extracted teeth with amalgam restorations? - ANS hazardous
waste (because of the mercury content)
which material is commonly used for a temporary filling according to elsevier, composite resin,
amalgam, glass ionomer, or zinc oxide eugenol - ANS zinc oxide eugenol
which instrument is used to carve amalgam restorations, burnisher, discoid cleoid, condenser,
or explorer - ANS discoid cleoid
what is the first step in CPR for an unresponsive patient, a. check for pulse, b. call for
emergency help, c. start chest compressions, d. give to rescue breaths - ANS Call for
emergency help immediately to get professional assistance on the way.
Then check pulse and breathing (usually within 10 seconds).
If no pulse and no breathing, start chest compressions (option c).
which radiographic technique reduces patient radiation exposure,
a. parallel technique,
b. bisecting angle technique
c. panoramic imaging
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
, d. occlusal film technique - ANS parallel
what does MSDS stand for - ANS material safety data sheet
the process of removing biofilm from dental unit waterlines is called - ANS purging
What solution is used to irrigate canals during endodontic therapy? A. Sterile saline B.
Hydrogen peroxide C. Sodium hypochlorine D. Chlorhexdine - ANS sodium hypochlorine
Which of the following is NOT a measurement used in constructing a complete denture?
A. Framework, pontic, and denture base
B. Retainers, artificial teeth, and denture base
C. Framework, wings, and artificial teeth
D. Retainers, wings, and pontics - ANS B
What type of implant includes a metal frame andis placed under the periosteum, but on top of
bone?
A. Transosteal
B. Subperiosteal Implant
C. Endosteal
D. Osseointegrated - ANS subperiosteal
most common reason of failure on dental sealants - ANS moisture contamination
Water-to-powder ratio generally used for an adult maxillary impression is ____ measures of
water to ____ scoops of powder.
A. 2-2
B. 4-2
3 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
QUESTIONS AND DETAILED ANSWERS.
EXPERT VERIFIED FOR GUARANTEED
PASS.
Explain when dry heat, chemical vapor, ethylene oxide gas, and steam autoclave sterilization
methods would be used - ANS 1. Dry Heat
Used for moisture-sensitive but heat-stable items like glassware, metal instruments, powders,
and oils. Not for plastics or rubber.
2. Chemical Vapor
Used for heat-stable instruments prone to rust or corrosion, such as dental handpieces.
Requires good ventilation due to chemical fumes.
3. Ethylene Oxide Gas (EtO)
Used for heat- and moisture-sensitive instruments, including plastics, electronics, and
complex devices. Long cycle; used in hospitals or manufacturers.
4. Steam Autoclave
Used for heat- and moisture-tolerant items like metal surgical tools and textiles. Most
common method; not for heat-sensitive materials.
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
,what type of gloves should be worn when handlin dirty instruments - ANS utility gloves
most effective way to prevent cross contamination in dental office - ANS proper hand
hygiene
what is the correct hve tip positioning during a procedure? - ANS 45 degrees
which type of waste includes extracted teeth with amalgam restorations? - ANS hazardous
waste (because of the mercury content)
which material is commonly used for a temporary filling according to elsevier, composite resin,
amalgam, glass ionomer, or zinc oxide eugenol - ANS zinc oxide eugenol
which instrument is used to carve amalgam restorations, burnisher, discoid cleoid, condenser,
or explorer - ANS discoid cleoid
what is the first step in CPR for an unresponsive patient, a. check for pulse, b. call for
emergency help, c. start chest compressions, d. give to rescue breaths - ANS Call for
emergency help immediately to get professional assistance on the way.
Then check pulse and breathing (usually within 10 seconds).
If no pulse and no breathing, start chest compressions (option c).
which radiographic technique reduces patient radiation exposure,
a. parallel technique,
b. bisecting angle technique
c. panoramic imaging
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
, d. occlusal film technique - ANS parallel
what does MSDS stand for - ANS material safety data sheet
the process of removing biofilm from dental unit waterlines is called - ANS purging
What solution is used to irrigate canals during endodontic therapy? A. Sterile saline B.
Hydrogen peroxide C. Sodium hypochlorine D. Chlorhexdine - ANS sodium hypochlorine
Which of the following is NOT a measurement used in constructing a complete denture?
A. Framework, pontic, and denture base
B. Retainers, artificial teeth, and denture base
C. Framework, wings, and artificial teeth
D. Retainers, wings, and pontics - ANS B
What type of implant includes a metal frame andis placed under the periosteum, but on top of
bone?
A. Transosteal
B. Subperiosteal Implant
C. Endosteal
D. Osseointegrated - ANS subperiosteal
most common reason of failure on dental sealants - ANS moisture contamination
Water-to-powder ratio generally used for an adult maxillary impression is ____ measures of
water to ____ scoops of powder.
A. 2-2
B. 4-2
3 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
