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DASLE MN State Exam Latest Version Graded A+
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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...

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  • February 21, 2024
  • 44
  • 2023/2024
  • Exam (elaborations)
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  • dasle mn state exam latest version graded a

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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.

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