DASLE MN State Exam Questions With Verified Correct Answers.
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DASLE MN
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DASLE MN
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 surfa...
DASLE MN State Exam Questions With
Verified Correct 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)
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
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
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
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.
Sequence of Polishing - Answer Aesthetic and porcelain restorations should be polished first
Operators preference
flossing after polishing - Answer polish the inter proximal tooth surfaces and remove any abrasive
agent or debris that may be lodged in the contact area
Evaluation of polishing - Answer -after tooth surfaces have been dried with air, no disclosing agent
remains,
-teeth are glossy and reflect light from the mirror
-no evidence of trauma to the gingival margins or to any other soft tissues
Topical Anesthetic - Answer provides a temporary numbing effect on nerve endings located on the
surface of the oral mucosa
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