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Classification of Intracanal Instruments

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Classification of Intracanal Instruments

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Questions and Answers

What type of instruments are Gates-Glidden (GG) burs and Peeso reamers?

Manually-operated instruments

Engine-driven nickel-titanium rotary instruments

Ultrasonic instruments

Low-speed instruments with a latch-type attachment (correct)

Which group of instruments can safely be operated in, and adapt itself to, curved root canals?

Manually-operated instruments

Engine-driven reciprocating instruments

Engine-driven nickel-titanium rotary instruments (correct)

Low-speed instruments with a latch-type attachment

Which group of instruments adapt themselves three-dimensionally to the shape of the root canal?

Engine-driven reciprocating instruments

Engine-driven nickel-titanium rotary instruments (correct)

Ultrasonic instruments

Engine-driven instruments that adapt three-dimensionally longitudinally

What is the main purpose of barbed broaches?

To engage and remove soft tissue from the canal Signup and view all the answers

Which group of instruments primarily uses reciprocating motion?

Group V: Engine-driven reciprocating instruments Signup and view all the answers

What is the primary function of a Hedström file in endodontic treatment?

To remove dentin and debris with its cutting action Signup and view all the answers

What is the distinguishing feature of a K-type file compared to a Hedström file?

It adapts three-dimensionally to the shape of the root canal Signup and view all the answers

What is the role of a Uni-file in endodontic treatment?

To efficiently remove dentin and debris with its rhomboidal cross-section Signup and view all the answers

Why is flexibility important in endodontic instruments?

To reach areas that are not possible with rigid instruments Signup and view all the answers

How does a Nickel Titanium (NiTi) file differ from a Hedström file?

It uses a reciprocating motion for cleaning and shaping the canal Signup and view all the answers

Study Notes

Endodontic Instruments

Gates-Glidden (GG) burs and Peeso reamers are types of endodontic instruments.

Adaptability in Root Canals

Instruments that can safely operate in and adapt to curved root canals are engine-driven instruments.

Three-Dimensional Adaptation

Instruments that adapt themselves three-dimensionally to the shape of the root canal are NiTi files.

Barbed Broaches

The main purpose of barbed broaches is to remove pulp tissue and remaining debris from the root canal.

Reciprocating Motion

Reciprocating motion is primarily used by hand files and reamers.

Hedström File Function

The primary function of a Hedström file in endodontic treatment is to shape and clean the root canal.

K-Type File vs. Hedström File

The distinguishing feature of a K-type file compared to a Hedström file is its triangular cross-section.

Uni-File Role

The role of a Uni-file in endodontic treatment is to shape and clean the root canal in a single file system.

Importance of Flexibility

Flexibility is important in endodontic instruments because it enables them to navigate curved canals without breakage.

NiTi File vs. Hedström File

A Nickel Titanium (NiTi) file differs from a Hedström file in its superelastic properties, allowing it to be more flexible and resistant to breakage.

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Description

Test your knowledge of intracanal instruments by identifying and categorizing them into six groups based on their operational methods and specific instrument types.