Podcast
Questions and Answers
What is a significant disadvantage of single-patient-use restorative instruments?
What is a significant disadvantage of single-patient-use restorative instruments?
- They are ineffective in shaping material.
- They can be reused multiple times.
- They allow for disease transfer.
- They are expensive. (correct)
Which instrument is primarily used for compressing amalgam into tooth preparations?
Which instrument is primarily used for compressing amalgam into tooth preparations?
- Condensers (correct)
- Carvers
- Burnishers
- Amalgam carrier
Which type of burnisher is used to create occlusal anatomy in amalgam restorations?
Which type of burnisher is used to create occlusal anatomy in amalgam restorations?
- T-Ball burnisher (correct)
- Acorn burnisher
- Flat burnisher
- Football burnisher
What should be avoided during the use of a bur on healthy dentine?
What should be avoided during the use of a bur on healthy dentine?
Which instrument is designed to mix different materials in operative dentistry?
Which instrument is designed to mix different materials in operative dentistry?
What is essential to do before finishing and polishing an amalgam restoration?
What is essential to do before finishing and polishing an amalgam restoration?
What type of instrument is a carver primarily used for?
What type of instrument is a carver primarily used for?
What is the main purpose of periodontal probes in dentistry?
What is the main purpose of periodontal probes in dentistry?
Which of the following is a key function of finishing amalgam restorations?
Which of the following is a key function of finishing amalgam restorations?
Why are plastic instruments important in modern dentistry?
Why are plastic instruments important in modern dentistry?
Which type of handpiece is primarily used for oral surgery and laboratory work?
Which type of handpiece is primarily used for oral surgery and laboratory work?
What is the primary purpose of utilizing a burnisher in dental procedures?
What is the primary purpose of utilizing a burnisher in dental procedures?
What characteristic differentiates low-speed handpieces from high-speed handpieces?
What characteristic differentiates low-speed handpieces from high-speed handpieces?
What does the blade of a dental instrument refer to?
What does the blade of a dental instrument refer to?
What is a significant benefit of using contra-angle handpieces?
What is a significant benefit of using contra-angle handpieces?
What is indicated by the term 'indirect vision' when using a mouth mirror?
What is indicated by the term 'indirect vision' when using a mouth mirror?
Which instrument is primarily used to detect tooth surface irregularities and decay?
Which instrument is primarily used to detect tooth surface irregularities and decay?
What is the function of tweezers in dental settings?
What is the function of tweezers in dental settings?
Which of the following describes a differentiating factor between straight and contra-angle handpieces?
Which of the following describes a differentiating factor between straight and contra-angle handpieces?
Which component connects the handle to the blade in a dental instrument?
Which component connects the handle to the blade in a dental instrument?
What is the primary use of a low-speed contra-angle handpiece?
What is the primary use of a low-speed contra-angle handpiece?
What type of bur is primarily used in establishing wall angulations during cavity preparations?
What type of bur is primarily used in establishing wall angulations during cavity preparations?
Which high-speed handpiece characteristic distinguishes it from low-speed handpieces?
Which high-speed handpiece characteristic distinguishes it from low-speed handpieces?
Which bur shape is mainly used in pedodontics?
Which bur shape is mainly used in pedodontics?
What is a significant advantage of diamond burs in operative dentistry?
What is a significant advantage of diamond burs in operative dentistry?
What is the purpose of Smart Prep instruments in dentistry?
What is the purpose of Smart Prep instruments in dentistry?
Which type of bur is described as having an elongated cylinder and is used for amalgam tooth preparation?
Which type of bur is described as having an elongated cylinder and is used for amalgam tooth preparation?
What is a distinguishing feature of a cross-cut tapered fissure bur?
What is a distinguishing feature of a cross-cut tapered fissure bur?
What speed range can some low-speed contra-angle handpieces achieve?
What speed range can some low-speed contra-angle handpieces achieve?
What type of bur is used for initial tooth penetration and placement of retention grooves?
What type of bur is used for initial tooth penetration and placement of retention grooves?
Flashcards
Dental Hand Instruments
Dental Hand Instruments
Tools used by dentists for various procedures in the mouth.
Mouth Mirror
Mouth Mirror
Dental instrument that provides indirect vision of the mouth.
Explorer (Probe)
Explorer (Probe)
Pointed instrument for feeling tooth surfaces, decay detection, and measuring dentin hardness.
Periodontal Probe
Periodontal Probe
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Tweezers
Tweezers
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Dental Handpiece
Dental Handpiece
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Straight Handpiece
Straight Handpiece
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Contra-Angle Handpiece
Contra-Angle Handpiece
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Bur
Bur
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Handle (Shaft)
Handle (Shaft)
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Low-speed handpiece speed range
Low-speed handpiece speed range
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High-speed handpiece speed range
High-speed handpiece speed range
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Low-speed handpiece uses
Low-speed handpiece uses
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High-speed handpiece uses
High-speed handpiece uses
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Dental Bur
Dental Bur
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Tungsten Carbide Bur
Tungsten Carbide Bur
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Round Bur use
Round Bur use
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Diamond Bur
Diamond Bur
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SmartPrep Instruments use
SmartPrep Instruments use
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Types of Diamond Burs
Types of Diamond Burs
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Amalgam Restorative Instruments
Amalgam Restorative Instruments
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Amalgam Carriers
Amalgam Carriers
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Amalgam Condensers
Amalgam Condensers
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Amalgam Carvers
Amalgam Carvers
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Burnishers (Amalgam)
Burnishers (Amalgam)
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Finishing Amalgam Restorations
Finishing Amalgam Restorations
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Plastic Filling Instruments
Plastic Filling Instruments
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Cement Spatulas
Cement Spatulas
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Finishing Time for Amalgam
Finishing Time for Amalgam
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Advantages of Amalgam
Advantages of Amalgam
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Study Notes
History of Instruments
- Early hand instruments had large, heavy handles and inferior metal alloys, making them difficult and ineffective.
- Many dentists crafted their own instruments.
Instrument Parts
- Shaft/Handle: A straight shaft used as a handle, without size variations.
- Shank: Connects the handle to the blade; site of angulations.
- Blade: The cutting portion of an instrument. For non-cutting instruments (e.g., condensers), the equivalent part is called the nib. The working surface of the nib is the face.
Examination Instruments
- Mouth mirror: Used to provide clear visualizations of the oral cavity. (Indirect visualization).
- Probe (Explorer): A pointed instrument to check for irregularities and detect decay.
- Periodontal probes: Tools to measure the depth of periodontal pockets. Used in operative dentistry for instrument sizing.
- Tweezer: Used for holding materials like cotton roll and to move materials in and out of cavities.
Rotating Instruments
- Hand pieces: Devices for rotating instruments like burs.
- Types of handpieces: Straight handpiece, contra-angle handpieces (low speed, high speed).
- Burs: Rotary cutting instruments with cutting blades on the head. Available in numerous shapes and sizes.
Dental Burs
- Tungsten carbide burs: A significant advancement in high-speed cutting, became available in 1947.
- Shape and size: Burs come in various shapes(Round, Straight, inverted cone, Tapered fissure, Pear shaped) and sizes.
- Round burs: Used for initial tooth penetration and placement of retention grooves.
- Straight fissure burs: Used for amalgam tooth preparation.
- Inverted cone burs: Used for cavity extensions, establishing wall angulations, and retention.
- Tapered fissure burs: Used for cavity preparation, forming angles, and creating retention grooves in walls.
- Pear-shaped burs: Primarily used in pediatric dentistry (pedodontics.)
- Cross-cut tapered fissure burs: Used for cutting cavities for inlays.
- Diamond burs: Increasingly common in operative dentistry due to their long lifespan and efficiency in cutting enamel and dentin.
- Color-coding: Indicates the coarseness of the bur. (White = super fine, Yellow = extra fine, Red = fine, Blue = standard, Green = coarse, Black = super coarse).
- Smart Prep instruments: Medical polymer instruments removing decayed dentin while preserving healthy dentin.
Amalgam Restorative Instruments
- Amalgam Carriers: Tools for picking up and placing amalgam into tooth cavities.
- Condensers: Used to compact amalgam into all areas of the cavity preparation.
- Carvers: Instruments for shaping amalgam and resin composite after placement.
- Burnishers: Used for polishing, shining, and shaping amalgam.
- Types of burnishers: Football burnisher, Acorn burnisher, T-ball burnisher.
Plastic Instruments and Cement Spatulas
- Plastic filling instruments: Initially used with silicate and acrylic resins. Now used with tooth-colored materials like resin composite and GIC.
- Cement spatulas: Various sizes and thicknesses are available for mixing cement and cavity liners on glass slabs or paper pads.
Finishing and Polishing
- Finishing: Removing marginal irregularities ,Defining anatomical contours and Smoothing surface roughness of the amalgam restoration after the amalgam has fully set (at least 24 hours).
- Polishing: Producing a smooth, shiny surface on the amalgam restoration, preventing recurrent decay maintaining periodontal health, and preventing occlusal problems
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Description
Explore the history and functioning of dental instruments in this quiz. Learn about the various parts of instruments, including the handle, shank, and blade and discover the uses of different examination tools like mouth mirrors and probes.
