DASLE MN State Exam 2026 Questions
and Answers
Clinical Crown - Answer -That portion of the tooth that is visible in the oral cavity
Oral prophylaxis - Answer -The complete removal of calculus, debris, stain, and
plaque from the teeth.
DH and DDS allowed
Selective Polishing - Answer -a procedure in which only those teeth or surfaces
with stain are polished
Purpose is to avoid unnecessary removal of even small amounts of surface enamel
Indications for Coronal Polishing - Answer -- Before placement of dental sealants -
Before placement of dental dam - Before cementation of orthodontic bands -
before cementation of crowns and bridges - before application of acid etching
solution (if indicated by manufacturer)
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,Contraindications for Coronal Polishing - Answer -- when no stains are present -
patients who are high risk for dental caries (ex: bottle caries, root caries, thin
demineralization enamel) - sensitive teeth - newly erupted teeth B/C mineralization
of tooth surface maybe incomplete
Endogenous stains - Answer -Stains developed from within the structure of the
tooth
Example: Excessive amount of fluoride during tooth formation, medications taken
by the mother or the child during tooth development (Tetracycline)
CANNOT be removed by polishing
Exogenous Stain - Answer -originates from sources outside the tooth and are
caused by environmental agents.
Extrinsic Stain - Answer -appear on the exterior of the tooth, and CAN be removed
by polishing
Examples: Food, Drink, Tobacco
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,Intrinsic Stain - Answer -Caused by environmental agents but CANNOT be
removed because the stain has become incorporated into the structure of the tooth.
Examples: Amalgam tattoo, smoking, chewing, or dipping
Extrinsic Stain Examples - Answer -black stain, brown stain, yellow stain, tobacco
stain, green stain, dental plaque agents, food and drink, Nasmyth's membrane
Intrinsic Stain Examples - Answer -Pulpless teeth, Tetracycline antibiotics, dental
fluorosis, imperfect tooth development, silver amalgam
Two methods of stain removal - Answer -Air-powder polishing and rubber cup
polishing
Rubber cup polishing - Answer -A technique that is used to remove plaque and
stains from the coronal surfaces of the teeth. Most common
Polishing cups - Answer -Soft, webbed polishing cups are used to clean and polish
the smooth surfaces of the teeth.
Bristle Brushes - Answer -made from either natural or synthetic materials, may be
used to remove stains from deep pits and fissures of the enamel surfaces
Grasping the handpiece - Answer -Pen grasp
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, fulcrum - Answer -provides stability for the operator and must be placed in such a
way to allow movement of the wrist and forearm.
Abrasives (cleaning and polishing agents) - Answer -extra coarse, coarse, medium,
fine, extra fine
the coarser the agent, the greater is the abrasion to the surface
What prophy paste is not recommended for esthetic restorations? - Answer -regular
prophy paste
Low-abrasive pastes such as micron-fine sapphire or diamond paste or aluminum
oxide paste should be used for restorations.
Factors that influence the rate of abrasion - Answer -The more agent used, the
greater the degree of abrasion.
The lighter the pressure, the less abrasion.
The slower the rotation of the cup, the less abrasion.
©COPYRIGHT 2025, ALL RIGHTS RESERVED 4
and Answers
Clinical Crown - Answer -That portion of the tooth that is visible in the oral cavity
Oral prophylaxis - Answer -The complete removal of calculus, debris, stain, and
plaque from the teeth.
DH and DDS allowed
Selective Polishing - Answer -a procedure in which only those teeth or surfaces
with stain are polished
Purpose is to avoid unnecessary removal of even small amounts of surface enamel
Indications for Coronal Polishing - Answer -- Before placement of dental sealants -
Before placement of dental dam - Before cementation of orthodontic bands -
before cementation of crowns and bridges - before application of acid etching
solution (if indicated by manufacturer)
©COPYRIGHT 2025, ALL RIGHTS RESERVED 1
,Contraindications for Coronal Polishing - Answer -- when no stains are present -
patients who are high risk for dental caries (ex: bottle caries, root caries, thin
demineralization enamel) - sensitive teeth - newly erupted teeth B/C mineralization
of tooth surface maybe incomplete
Endogenous stains - Answer -Stains developed from within the structure of the
tooth
Example: Excessive amount of fluoride during tooth formation, medications taken
by the mother or the child during tooth development (Tetracycline)
CANNOT be removed by polishing
Exogenous Stain - Answer -originates from sources outside the tooth and are
caused by environmental agents.
Extrinsic Stain - Answer -appear on the exterior of the tooth, and CAN be removed
by polishing
Examples: Food, Drink, Tobacco
©COPYRIGHT 2025, ALL RIGHTS RESERVED 2
,Intrinsic Stain - Answer -Caused by environmental agents but CANNOT be
removed because the stain has become incorporated into the structure of the tooth.
Examples: Amalgam tattoo, smoking, chewing, or dipping
Extrinsic Stain Examples - Answer -black stain, brown stain, yellow stain, tobacco
stain, green stain, dental plaque agents, food and drink, Nasmyth's membrane
Intrinsic Stain Examples - Answer -Pulpless teeth, Tetracycline antibiotics, dental
fluorosis, imperfect tooth development, silver amalgam
Two methods of stain removal - Answer -Air-powder polishing and rubber cup
polishing
Rubber cup polishing - Answer -A technique that is used to remove plaque and
stains from the coronal surfaces of the teeth. Most common
Polishing cups - Answer -Soft, webbed polishing cups are used to clean and polish
the smooth surfaces of the teeth.
Bristle Brushes - Answer -made from either natural or synthetic materials, may be
used to remove stains from deep pits and fissures of the enamel surfaces
Grasping the handpiece - Answer -Pen grasp
©COPYRIGHT 2025, ALL RIGHTS RESERVED 3
, fulcrum - Answer -provides stability for the operator and must be placed in such a
way to allow movement of the wrist and forearm.
Abrasives (cleaning and polishing agents) - Answer -extra coarse, coarse, medium,
fine, extra fine
the coarser the agent, the greater is the abrasion to the surface
What prophy paste is not recommended for esthetic restorations? - Answer -regular
prophy paste
Low-abrasive pastes such as micron-fine sapphire or diamond paste or aluminum
oxide paste should be used for restorations.
Factors that influence the rate of abrasion - Answer -The more agent used, the
greater the degree of abrasion.
The lighter the pressure, the less abrasion.
The slower the rotation of the cup, the less abrasion.
©COPYRIGHT 2025, ALL RIGHTS RESERVED 4
