Dental Instruments Ch

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Dental Hand Instruments

Chapter 34

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Chapter 34Lesson 34.1

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Learning Objectives

• Define and spell the Key Terms.

• Describe the three parts of a dental hand instrument.

• Describe the instrument formula designed by G.V. Black.

• Discuss the theory of placing an instrument in a specific sequence.

• List the examination instruments and their uses.(Cont’d…)

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Learning Objectives

(…Cont’d)

• Identify examination instruments.

• List the types of hand (manual) cutting instruments and their uses.

• Identify hand (manual) cutting instruments.

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Introduction

A wide variety of dental instruments are used in dental procedures!

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• Referred to by:

– Name

– Assigned number

• Black’s Instrument Formula

– Identifies width of blade

– Identifies length of blade

– Identifies angle of blade

Identifying Hand Instruments

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• 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 designed for a specific function

Hand Instrument Design

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Fig. 34-2 Three parts of a dental instrument.

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Four Categories

Examination

Hand-cutting

Restorative

Accessory

Classification of General Dental Instruments

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Fig. 34-4 Examination instruments. (C From Baum L, Philips RW, Lund MR: Textbook of operative dentistry, ed 3, Philadelphia, 1995,

Saunders. E Courtesy Miltex Instrument Company, Inc., Bethpage, NY.)

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Fig. 34-5 Uses of the mouth mirror.

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Fig. 34-8 Hand cutting instruments. (Drawings from Baum L, Phillips RW, Lund MR: Textbook of operative dentistry,

ed 3, Philadelphia, 1995, Saunders.)

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Chapter 34Lesson 34.2

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Learning Objectives

• List the types of restorative instruments and their uses.

• Identify restorative instruments.

• Describe additional accessory instruments and items used in general dentistry.

• Identify accessory instruments and items.

• Describe the use of preset trays and tubs in dentistry.

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Fig. 34-9 Restorative instruments. (Courtesy Miltex Instrument Company, Inc., Bethpage, NY; and from Baum L, Phillips RW,

Lund MR: Textbook of operative dentistry, ed 3, Philadelphia, 1995, Saunders.)

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Fig. 34-10 Accessory instruments and items.

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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

Preset Cassettes

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• Criteria Set-up

• Instruments set-up from left to right

– Basic set-up

– Additional examination instruments

– Handcutting instruments

– Restorative instruments

– Accessory items

Instrument Sequence on a Tray

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Fig. 34-11 Preset restorative tray.(Courtesy A-dec.)

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• Organization

– Instruments with bands of same color.

– Tray of the same color.

– Tub with dental materials of the same color.

Color Coding of Instruments