MN DENTAL ASSISTANT LICENSE EXAM QUESTIONS AND
ANSWERS UPDATED 2025/2026 A COMPLETE SOLUTION ALL
ANSWERS 100% CORRECT DETAILED BEST GRADED A+ FOR
SUCCESS
What happens if a rubber dam is punched too flat? - CORRECT ANSWERS Stretching
and bunching
When you are placing a dental dam, what do you do after it is over the anchor tooth? -
CORRECT ANSWERS Place over the furthest tooth
If you are working on #21 and #19 is the anchor tooth, what is the key tooth? - CORRECT
ANSWERS #27
What would be used to remove any dental dam between the teeth? - CORRECT
ANSWERS Floss
What is the dental dam inverted into? - CORRECT ANSWERS Free gingiva
What is the lubricant on the dental dam used for - CORRECT ANSWERS To help dam
slide interproximally
What teeth would you use a size 3 punch hole for? - CORRECT ANSWERS Premolars
and molars
When working on a maxillary central tooth, what teeth should be exposed? - CORRECT
ANSWERS Canine to canine
What is used to seat the dam interproximally? - CORRECT ANSWERS Floss
,MN DENTAL ASSISTANT LICENSE EXAM QUESTIONS AND
ANSWERS UPDATED 2025/2026 A COMPLETE SOLUTION ALL
ANSWERS 100% CORRECT DETAILED BEST GRADED A+ FOR
SUCCESS
What do you use to invert a dental dam? - CORRECT ANSWERS Dental floss, plastic,
and spoon excavator
What is the reason for using a heavy dental dam? - CORRECT ANSWERS Better gingival
retraction
What is NOT used to invert a dental dam? - CORRECT ANSWERS An explorer
What is the primary use for a dental dam napkin? - CORRECT ANSWERS Absorb
moisture
What can floss be used for in a dental dam procedure? - CORRECT ANSWERS -Inverting
the dam
-anchoring the dam
-help material into septum
What are benefits of using a dental dam? - CORRECT ANSWERS -Reduces direct contact
from the dental water unit
-Serves as a protective barrier
-Reduces spattering of patient microorganisms onto the dental team
The dental dam forceps beak fits into what? - CORRECT ANSWERS The holes of the
jaws on the clamp
When punching the dental dam, the holes should be spaced____ to ____ apart - CORRECT
ANSWERS 3-3.5mm
, MN DENTAL ASSISTANT LICENSE EXAM QUESTIONS AND
ANSWERS UPDATED 2025/2026 A COMPLETE SOLUTION ALL
ANSWERS 100% CORRECT DETAILED BEST GRADED A+ FOR
SUCCESS
What is the most frequently used thickness for a dam in endo? - CORRECT ANSWERS
Thin
What frame will appear radiopaque - CORRECT ANSWERS Young frame (steel)
What is true about a dental dam napkin? - CORRECT ANSWERS -Absorbs moisture
-Reduces the risk of patient getting a latex allergy
-Disposable
-Precut
When do you use a copalite varnish? - CORRECT ANSWERS Under a temporary cement
What method should you use to when placing a second coat of varnish? - CORRECT
ANSWERS Use cotton pliers, then a second cotton pliers, and a new cotton pledget
What is the purpose of copalite varnish? - CORRECT ANSWERS To seal dental tubules
What is dental varnish used for? - CORRECT ANSWERS To reduce leakage around a
restoration
What do you use to place dental varnish? - CORRECT ANSWERS Cotton pellets
What are the ingredients used for bleaching a non-vital tooth? - CORRECT ANSWERS
Hydrogen peroxide and sodium perborate
ANSWERS UPDATED 2025/2026 A COMPLETE SOLUTION ALL
ANSWERS 100% CORRECT DETAILED BEST GRADED A+ FOR
SUCCESS
What happens if a rubber dam is punched too flat? - CORRECT ANSWERS Stretching
and bunching
When you are placing a dental dam, what do you do after it is over the anchor tooth? -
CORRECT ANSWERS Place over the furthest tooth
If you are working on #21 and #19 is the anchor tooth, what is the key tooth? - CORRECT
ANSWERS #27
What would be used to remove any dental dam between the teeth? - CORRECT
ANSWERS Floss
What is the dental dam inverted into? - CORRECT ANSWERS Free gingiva
What is the lubricant on the dental dam used for - CORRECT ANSWERS To help dam
slide interproximally
What teeth would you use a size 3 punch hole for? - CORRECT ANSWERS Premolars
and molars
When working on a maxillary central tooth, what teeth should be exposed? - CORRECT
ANSWERS Canine to canine
What is used to seat the dam interproximally? - CORRECT ANSWERS Floss
,MN DENTAL ASSISTANT LICENSE EXAM QUESTIONS AND
ANSWERS UPDATED 2025/2026 A COMPLETE SOLUTION ALL
ANSWERS 100% CORRECT DETAILED BEST GRADED A+ FOR
SUCCESS
What do you use to invert a dental dam? - CORRECT ANSWERS Dental floss, plastic,
and spoon excavator
What is the reason for using a heavy dental dam? - CORRECT ANSWERS Better gingival
retraction
What is NOT used to invert a dental dam? - CORRECT ANSWERS An explorer
What is the primary use for a dental dam napkin? - CORRECT ANSWERS Absorb
moisture
What can floss be used for in a dental dam procedure? - CORRECT ANSWERS -Inverting
the dam
-anchoring the dam
-help material into septum
What are benefits of using a dental dam? - CORRECT ANSWERS -Reduces direct contact
from the dental water unit
-Serves as a protective barrier
-Reduces spattering of patient microorganisms onto the dental team
The dental dam forceps beak fits into what? - CORRECT ANSWERS The holes of the
jaws on the clamp
When punching the dental dam, the holes should be spaced____ to ____ apart - CORRECT
ANSWERS 3-3.5mm
, MN DENTAL ASSISTANT LICENSE EXAM QUESTIONS AND
ANSWERS UPDATED 2025/2026 A COMPLETE SOLUTION ALL
ANSWERS 100% CORRECT DETAILED BEST GRADED A+ FOR
SUCCESS
What is the most frequently used thickness for a dam in endo? - CORRECT ANSWERS
Thin
What frame will appear radiopaque - CORRECT ANSWERS Young frame (steel)
What is true about a dental dam napkin? - CORRECT ANSWERS -Absorbs moisture
-Reduces the risk of patient getting a latex allergy
-Disposable
-Precut
When do you use a copalite varnish? - CORRECT ANSWERS Under a temporary cement
What method should you use to when placing a second coat of varnish? - CORRECT
ANSWERS Use cotton pliers, then a second cotton pliers, and a new cotton pledget
What is the purpose of copalite varnish? - CORRECT ANSWERS To seal dental tubules
What is dental varnish used for? - CORRECT ANSWERS To reduce leakage around a
restoration
What do you use to place dental varnish? - CORRECT ANSWERS Cotton pellets
What are the ingredients used for bleaching a non-vital tooth? - CORRECT ANSWERS
Hydrogen peroxide and sodium perborate
