copyright 2003, elsevier science (usa). all rights reserved. chapter 34 dental hand instruments...
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Copyright 2003, Elsevier Science (USA). All rights reserved.
Chapter 34Dental Hand Instruments
Chapter 34Dental Hand Instruments
Copyright 2003, Elsevier Science (USA)
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ISBN 0-7216-9770-4
Copyright 2003, Elsevier Science (USA). All rights reserved.
IntroductionIntroduction
A wide variety of dental instruments are used in dentistry today.A wide variety of dental instruments are used in dentistry today.
Copyright 2003, Elsevier Science (USA). All rights reserved.
Referred to by:• Name• Assigned number
Black’s instrument formula• Describes the angulation.• Describes the dimensions.
Referred to by:• Name• Assigned number
Black’s instrument formula• Describes the angulation.• Describes the dimensions.
Identifying Hand InstrumentsIdentifying Hand Instruments
Copyright 2003, Elsevier Science (USA). All rights reserved.
Handle• Portion of the instrument where the
operator grasps. Shank
• Part of the instrument that attaches the working end to the handle.
Working end• Portion of the instrument with a specific
function.
Handle• Portion of the instrument where the
operator grasps. Shank
• Part of the instrument that attaches the working end to the handle.
Working end• Portion of the instrument with a specific
function.
Hand Instrument DesignHand Instrument Design
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Four categories• Examination• Hand-cutting• Restorative• Accessory
Four categories• Examination• Hand-cutting• Restorative• Accessory
Classification of InstrumentsClassification of Instruments
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Allow the operator to thoroughly examine the health status of the oral cavity.
Mouth mirror• Indirect vision• Light reflection• Retraction• Tissue protection
Allow the operator to thoroughly examine the health status of the oral cavity.
Mouth mirror• Indirect vision• Light reflection• Retraction• Tissue protection
Examination InstrumentsExamination Instruments
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Explorer• Distinguish areas of calculus.• Distinguish decay.• Distinguish areas of discrepancies on
teeth. Cotton Pliers
• Carry, retrieve and place small objects.
• Locking• Non-locking
Explorer• Distinguish areas of calculus.• Distinguish decay.• Distinguish areas of discrepancies on
teeth. Cotton Pliers
• Carry, retrieve and place small objects.
• Locking• Non-locking
Examination Instruments cont’dExamination Instruments cont’d
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Periodontal probe• Measure the sulcus or pocket depth of
the periodontium. Articulating paper and holder
• Carbon paper held in place by a holder used to check a patient’s “bite.”
Periodontal probe• Measure the sulcus or pocket depth of
the periodontium. Articulating paper and holder
• Carbon paper held in place by a holder used to check a patient’s “bite.”
Examination Instruments cont’dExamination Instruments cont’d
Copyright 2003, Elsevier Science (USA). All rights reserved.
Allow the operator to manually remove decay, as well as smooth, finish, and prepare tooth structure to be restored back to its normal function.
Excavator is used for the removal of soft dentin, debris, and decay from the tooth.• Spoon excavator• Black spoon
Allow the operator to manually remove decay, as well as smooth, finish, and prepare tooth structure to be restored back to its normal function.
Excavator is used for the removal of soft dentin, debris, and decay from the tooth.• Spoon excavator• Black spoon
Handcutting InstrumentsHandcutting Instruments
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Hoe• Used to plane the walls and floors of the
tooth preparation. Chisel
• Used to cut the enamel margin of the tooth preparation, form sharp lines, point angles, and place retention grooves.
• Straight chisel• Bin-angle chisel• Wedelstaedt chisel• Angle former
Hoe• Used to plane the walls and floors of the
tooth preparation. Chisel
• Used to cut the enamel margin of the tooth preparation, form sharp lines, point angles, and place retention grooves.
• Straight chisel• Bin-angle chisel• Wedelstaedt chisel• Angle former
Handcutting Instruments cont’dHandcutting Instruments cont’d
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Hatchet• Used for cutting enamel, and to smooth
the walls and floors of the tooth preparation.
Gingival margin trimmer• Used to cut enamel and place bevels
along the gingival enamel margins of the preparation.
Hatchet• Used for cutting enamel, and to smooth
the walls and floors of the tooth preparation.
Gingival margin trimmer• Used to cut enamel and place bevels
along the gingival enamel margins of the preparation.
Handcutting Instruments cont’dHandcutting Instruments cont’d
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Allow the operator to place, condense, and carve a dental material to the original anatomy of the tooth structure.
Amalgam carrier• A double-ended instrument designed
with wells on either end to pack the freshly mixed amalgam in and carry it to the prepared tooth.
Allow the operator to place, condense, and carve a dental material to the original anatomy of the tooth structure.
Amalgam carrier• A double-ended instrument designed
with wells on either end to pack the freshly mixed amalgam in and carry it to the prepared tooth.
Restorative InstrumentsRestorative Instruments
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Condenser• Used to condense the freshly placed
amalgam into the preparation.• Smooth• Serrated
Burnisher • Used to smooth the surface of the freshly
placed amalgam restoration.• Egg-shaped• Football• T-shaped• Beaver tail
Condenser• Used to condense the freshly placed
amalgam into the preparation.• Smooth• Serrated
Burnisher • Used to smooth the surface of the freshly
placed amalgam restoration.• Egg-shaped• Football• T-shaped• Beaver tail
Restorative Instruments cont’dRestorative Instruments cont’d
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Carvers• Used to remove excess material, contour
surfaces, and carve anatomy back into the amalgam or intermediate restoration before it hardens.
• Discoid/Cleoid• Hollenback
Amalgam knife• Used for the removal of excess restorative
material along the margin where the material and tooth structure meet; most commonly interproximal.
Carvers• Used to remove excess material, contour
surfaces, and carve anatomy back into the amalgam or intermediate restoration before it hardens.
• Discoid/Cleoid• Hollenback
Amalgam knife• Used for the removal of excess restorative
material along the margin where the material and tooth structure meet; most commonly interproximal.
Restorative Instruments cont’dRestorative Instruments cont’d
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Composite placement instrument• Designed specifically for the placement
of composite restorative materials.• Anodized aluminum• Teflon
Plastic instrument • Instrument with a paddle shape that is
used for carrying dental materials to the prepared tooth structure; on the other end is a nib, which resembles a condenser.
Composite placement instrument• Designed specifically for the placement
of composite restorative materials.• Anodized aluminum• Teflon
Plastic instrument • Instrument with a paddle shape that is
used for carrying dental materials to the prepared tooth structure; on the other end is a nib, which resembles a condenser.
Restorative Instruments cont’dRestorative Instruments cont’d
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Miscellaneous instruments that may be needed for many uses to complete a procedure.
Spatulas• Used for most every procedure when a
dental material is involved.• Cement spatulas• Impression material spatulas
Miscellaneous instruments that may be needed for many uses to complete a procedure.
Spatulas• Used for most every procedure when a
dental material is involved.• Cement spatulas• Impression material spatulas
Accessory InstrumentsAccessory Instruments
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Scissors• Used for cutting dental dam material,
retraction cord, and stainless steel crowns.
• Crown and bridge scissors Dappen Dish
• Hold certain liquid dental materials during a procedure.
Scissors• Used for cutting dental dam material,
retraction cord, and stainless steel crowns.
• Crown and bridge scissors Dappen Dish
• Hold certain liquid dental materials during a procedure.
Accessory Instruments cont’dAccessory Instruments cont’d
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Amalgam well• Where the newly mixed amalgam is
placed and retrieved from. Howe Pliers
• Also referred to as 110 pliers. Useful for holding items, for carrying cotton products to and from the oral cavity, removing the matrix band, and placing and removing the wedge.
Amalgam well• Where the newly mixed amalgam is
placed and retrieved from. Howe Pliers
• Also referred to as 110 pliers. Useful for holding items, for carrying cotton products to and from the oral cavity, removing the matrix band, and placing and removing the wedge.
Accessory Instruments cont’dAccessory Instruments cont’d
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Hand instruments and related accessories for a given procedure are prepared, stored, and transported together.
Exam Amalgam Composite Crown and Bridge Endodontic Surgical
Hand instruments and related accessories for a given procedure are prepared, stored, and transported together.
Exam Amalgam Composite Crown and Bridge Endodontic Surgical
Preset CassettesPreset Cassettes
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Criteria Instruments set-up from left to right
• Basic set-up• Additional examination instruments• Handcutting instruments• Restorative instruments• Accessory items
Criteria Instruments set-up from left to right
• Basic set-up• Additional examination instruments• Handcutting instruments• Restorative instruments• Accessory items
Instrument Sequence on a TrayInstrument Sequence on a Tray
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Organization• Instruments with bands of same color.• Tray of the same color.• Tub with dental materials of the same
color.
Organization• Instruments with bands of same color.• Tray of the same color.• Tub with dental materials of the same
color.
Color Coding of InstrumentsColor Coding of Instruments