DASLE MN State Exam Latest Version
Graded A+
Clinical Crown ✔✔That portion of the tooth that is visible in the oral cavity
Oral prophylaxis ✔✔The complete removal of calculus, debris, stain, and plaque from the teeth.
DH and DDS allowed
Selective Polishing ✔✔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 ✔✔- 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)
,Contraindications for Coronal Polishing ✔✔- 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 ✔✔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 ✔✔originates from sources outside the tooth and are caused by environmental
agents.
Extrinsic Stain ✔✔appear on the exterior of the tooth, and CAN be removed by polishing
Examples: Food, Drink, Tobacco
,Intrinsic Stain ✔✔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 ✔✔black stain, brown stain, yellow stain, tobacco stain, green stain,
dental plaque agents, food and drink, Nasmyth's membrane
Intrinsic Stain Examples ✔✔Pulpless teeth, Tetracycline antibiotics, dental fluorosis, imperfect
tooth development, silver amalgam
Two methods of stain removal ✔✔Air-powder polishing and rubber cup polishing
Rubber cup polishing ✔✔A technique that is used to remove plaque and stains from the coronal
surfaces of the teeth. Most common
Polishing cups ✔✔Soft, webbed polishing cups are used to clean and polish the smooth surfaces
of the teeth.
, Bristle Brushes ✔✔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 ✔✔Pen grasp
fulcrum ✔✔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) ✔✔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? ✔✔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 ✔✔The more agent used, the greater the degree of
abrasion.
Graded A+
Clinical Crown ✔✔That portion of the tooth that is visible in the oral cavity
Oral prophylaxis ✔✔The complete removal of calculus, debris, stain, and plaque from the teeth.
DH and DDS allowed
Selective Polishing ✔✔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 ✔✔- 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)
,Contraindications for Coronal Polishing ✔✔- 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 ✔✔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 ✔✔originates from sources outside the tooth and are caused by environmental
agents.
Extrinsic Stain ✔✔appear on the exterior of the tooth, and CAN be removed by polishing
Examples: Food, Drink, Tobacco
,Intrinsic Stain ✔✔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 ✔✔black stain, brown stain, yellow stain, tobacco stain, green stain,
dental plaque agents, food and drink, Nasmyth's membrane
Intrinsic Stain Examples ✔✔Pulpless teeth, Tetracycline antibiotics, dental fluorosis, imperfect
tooth development, silver amalgam
Two methods of stain removal ✔✔Air-powder polishing and rubber cup polishing
Rubber cup polishing ✔✔A technique that is used to remove plaque and stains from the coronal
surfaces of the teeth. Most common
Polishing cups ✔✔Soft, webbed polishing cups are used to clean and polish the smooth surfaces
of the teeth.
, Bristle Brushes ✔✔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 ✔✔Pen grasp
fulcrum ✔✔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) ✔✔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? ✔✔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 ✔✔The more agent used, the greater the degree of
abrasion.
