DASLE MN State Exam / Complete Questions & Correct Detailed Answers (100% Correct) 2025 / 2026.(Stretch your brain before your first study session) Terms in this set (199) Oral prophylaxis Selective Polishing Indications for Coronal Polishing Contraindications for Coronal Polishing The complete removal of calculus, debris, stain, and plaque from the teeth.DH and DDS allowed 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
- Before placement of dental sealants - Before
- when no stains are present - patients who are high
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)
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 Clinical Crown That portion of the tooth that is visible in the oral cavity 1 / 4
Endogenous stains Exogenous Stain Extrinsic Stain Intrinsic StainCaused 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 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 originates from sources outside the tooth and are caused by environmental agents.appear on the exterior of the tooth, and CAN be removed by polishing
Examples: Food, Drink, Tobacco 2 / 4
Polishing cupsSoft, webbed polishing cups are used to clean and polish the smooth surfaces of the teeth.Bristle Brushesmade 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 fulcrumprovides 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.The lighter the pressure, the less abrasion.The slower the rotation of the cup, the less abrasion.Sequence of Polishing Aesthetic and porcelain restorations should be polished first Operators preference 3 / 4
flossing after polishing polish the inter proximal tooth surfaces and remove any abrasive agent or debris that may be lodged in the contact area Evaluation of polishing -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 provides a temporary numbing effect on nerve endings located on the surface of the oral mucosa Active ingredients in topical medications benzocaine, lidocaine available in ointments, liquids, sprays, and patches How long do you leave the topical anesthetic on the tissue?Minimum 15-30 seconds Maximum 1-2 minutes spray topical anesthetics applied to larger surface areas of tissues Useful when applied in the back of the throat, in patients with a strong gag reflex patch topical anesthetics when placed, provides topical anesthesia in 10 seconds Placed where a local anesthetic injection will go Useful for alleviation of discomfort from denture sores or oral ulcers Injection sitesASA, MSA, PSA, infiltration, mandibular nerve block, buccal nerve block, lingual nerve block, mental nerve block, incisive nerve block, nasopalatine nerve block, greater palatine nerve block
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