Flashcards
Dental Materials
Cards in this deck (25)
- 1AbrassionWearing away or removal of material by the act of rubbing, cutting or scraping.
- 2AbrasiveA material composed of particles of sufficient hardness and sharpness to
cut of scratch a softer material when drawn across the surface. - 3FinishingA procedure used to reduce excess restorative material to develop
appropriate occlusion and contour. - 4PolishingA procedure that produces a shiny, smooth surface by eliminating fine
scratches, minor surface imperfections, and surface stains using mild abrasives. - 5Mohs’ hardness scaleRanks materials by their relative abrasion resistance
- 6Loose abrasivepowders and pastes for finishing, polishing & cleaning
- 7Bonded abrasiveAbrasive particle uniformly incorporated to form device (Disk,
cup, brush, wheel) - 8Coates abrasiveAttached to rotary disc or handheld finishing strip
- 9DiamondHardest known substance
- 10Pumicevolcanic silica, loose abrasive, and component of many prophy pastes
- 11what restorations should not be polished sooner than 24 hours after they are placedAmalgam
- 12what restorations are finished and polished as part of the restorative procedureComposite
- 13How is intermediate finishing accomplished?With flexible discs, cups and strips.
- 14MarginationThe process of removing excess restorative material to bring the
restoration flush with the tooth - 15PorcelainResistant to stain - prophy paste may scratch porcelain glaze
- 16What is used to contour, finish, and polish the surfaces of restorationsAbrasive agents
- 17Tin oxideExtremely fine, used as final polishing agent, powder-water/glycerin mix
- 18Cemented MarginsMargins on resin-bonded porcelain restorations are more susceptible to staining because of the properties of the resin cements
- 19Air PolishingThe use of air to propel very small microparticles as a replacement for rotary cutting and polishing instruments has gained much popularity
- 20AresolsCreated when a rotary device and moisture are used
- 21benefits of a properly finished and polished restoration-Decreased biofilm retention
-Resistance to tarnish/corrosion
-Increased longevity of the restoration
-Decreased attrition of natural tooth surfaces during chewing
-Improved esthetics
-Improved health of surrounding tissue - 22Composites are stained by?Coffee, tea, wine, tobacco.
- 23How do you clean dentures?The use of a toothbrush with water and a mild cleansing agent is sufficient to remove most plaque, surface stains, and food debris from removable prosthetic appliances
- 24How is final polishing accomplished?With a sub-micron aluminum oxxide polishing paste applied to the tooth with soft cups or felt pads.
- 25MI pasteContains amorphous calcium phosphate with Recaldent. This means that the teeth can actually remineralize and repair