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45 Cards in this Set
- Front
- Back
Black's formula
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developed by G.V. Black to standardize the exact size and angulation of an instrument
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blade
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may be flat or curved and have a rounded or cutting edge
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bur block
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rotary instruments are stored in a bur block; many variations and designs, such as round or rectangular shapes; come covered and may be magnetic; made of metal or plastic
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burnisher
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used to smooth rough margins of the restoration and to shape metal matrix bands
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burs
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are part of a group of instruments referred to as rotary instruments; used for cavity preparations, finishing and polishing restorations, surgical procedures, and dental appliance adjustments
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carborundum disc
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also known as Jo-dandy discs and separating discs; are thin brittle discs that break easily; they are double-sided and are used primarily in the dental laboratory to cut and finish gold restorations, but they can be used intraorally as well
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carver
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used to remove excess restorative material and to carve tooth anatomy int he restoration before the material hardens
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cement spatula
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used during restorative procedures; single-ended and made of stainless steel
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chisel
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used to shape and plane enamel and dentin walls of the cavity preparation
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chuck
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the head of the handpiece has a small, metal cylinder called a chuck
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composite instrument
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made of a high-grade thermoplastic material or anodized aluminum to prevent discoloration of the composite or glass ionomer restoration materials
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contra-angle
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attachment head or the low-speed handpiece; contra-angles hold burs, discs, stones, rubber cups, and brushes for intraoral and extraoral procedures
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cotton pliers
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shaped like tweezers with smooth surfaces or serrations on the ends of the beaks; used frequently during a procedure by the operator and the dental assistant to transport and manipulate various materials
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crown and collar scissors
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most commonly used with restorative procedures; have short blades that may be straight or curved; used to trim matrix bands, cut retraction cord, and in a variety of other ways
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cutting edge
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is formed by a bevel on the working end of the instrument
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electric handpiece
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are an alternative to the air-driven handpieces mainly used today; units can be calibrated to be used with existing air pressure and rheostats; can be used for all high- and low- speed needs; used for cavity preparation, endodontic procedures, contouring and trimming provisional crown and bridges, adjusting crowns, bridges, permanent restorations, prophys, and composite polishing
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excavator
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also known as spoon excavators; used to remove carious material and debris from the teeth
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explorer
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single- or double- ended instruments; the working end is thin, sharp point of flexible steel; examines the tooth structure for defects or areas of decay, examinations of restorations to check for faulty margins or fractures, and removal of excess materials from around the margins of restorations or from bases and liners in the cavity preparation
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fiberoptic light source
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greatly improve visibility of the treatment area for the operator; is carried along optical bundles in the tubing of the handpiece
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file
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used to trim excess filling material and to smooth the restoration, especially the margins
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finishing knife
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used to trim excess filling material
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frictional heat
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soem stones are considered heatless, thereby allowing the operator to polish a restoration without creating frictional heat
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friction-grip shank
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designated FG; is short, small, and smooth; these burs are used in friction grip, high-speed handpieces
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gingival margin trimmer (GMT)
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similar to the hatchet; blade on the GMT is curved; cutting edge is at an angle; double ended and paired; one end curves toward the left and the other curves toward the right; used during the cavity preparation, because one instrument is for the distal surfaces and another is for the mesial surfaces
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hatchet
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sometimes called enamel hatchets; similar to hatchets used to cut wood; paired left and right with a bevel on one side of the blade on one end and on the other end has a blade; used in a downward motion to refine the cavity walls and to obtain retention in the cavity preparation
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high-speed handpiece
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operates at 400,000 rpm and higher
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hoe
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an instrument used in a pulling motion to smooth and shape the floor of the cavity preparation
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low-speed handpiece
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operates at 30,000 rpm or less
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laboratory spatula
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used to mix impression materials and plaster
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latch-type shank
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designated RA; is shorter than the straight-shanked burs; has a notch that fits into the contra-angle handpiece and latches securely in place
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mandrel
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rods of various lengths that are used in low-speed handpieces with various abrasives
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manufacturer's number
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is found on the handle of the instrument; used when ordering the instrument, indicates the instrument's placement in a set of instruments
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microetcher
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a smaller version of the air abrasion units; used for intraoral sandblasting and dentin bonding
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monangle
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one angle
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mouth mirror
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a single-ended instrument made of metal or plastic; used for intraoral vision
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periodontal probe
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used to measure the depth of the gingival suclus
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woodson nstrument
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used to place and condense pliable restorative materials and ant to place cement bases in the cavity preparation
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plastic spatula
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used to mix composite resin materials
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preset tray system
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proveds an efficient menas of transporting instruments to the treatment room
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rheostat
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a foot control that activates and controls the speed of the handpiece
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rotary instrument
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include discs and stone and are designed to be used with dental handpieces; used in handpieces that operate at various speeds, both at chairside and in the dental laboratory
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shaft
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where the instrument is held by the operator
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shank
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connects the handle to the working end
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straight shank
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designated HP; long shank, functions with the straight, low-speed handpiece
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working end
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the end that performs the specific function of the instrument
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