Endodontic Materials by Dr. Pelin Zümrütel: Root Canal Treatment Success Factors

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Questions and Answers

What type of drill is used to remove gutta-percha during root canal retreatment?

Peeso reamer drill (correct)

K-type reamer

Hedstroem file

Gates-Glidden drill

What is the standard length of endodontic hand instruments?

31 mm

35 mm

21 mm

25 mm (correct)

What is the taper of standardized endodontic hand instruments?

2% (correct)

Which of the following is NOT a type of instrument used for shaping the root canal?

Rotary files Signup and view all the answers

What is the primary purpose of a barbed broach?

Removing pulp tissue Signup and view all the answers

Which of the following is a risk when using a reaming (rotational) motion with Hedstroem files?

Instrument separation Signup and view all the answers

What is the primary objective of disinfection in root canal treatment?

To clean the root canal system Signup and view all the answers

Which irrigant is considered the primary choice due to its exceptional antimicrobial action?

Sodium hypochlorite Signup and view all the answers

What is the recommended concentration range for Sodium Hypochlorite use in root canal treatment?

6-8% Signup and view all the answers

How does increasing the temperature of Sodium Hypochlorite affect its antimicrobial efficiency?

Increases efficiency Signup and view all the answers

What effect does Sodium Hypochlorite have on the mechanical properties of dentine?

Weakens dentine Signup and view all the answers

What is the main function of an Apex-Locator in endodontics?

To determine the distance to the apical foramen Signup and view all the answers

What is the primary goal of biomechanical preparation in root canal treatment?

To remove infected pulp tissue and prepare the canal for filling Signup and view all the answers

Which of the following is NOT a factor that contributes to successful root canal treatment?

Use of antibiotics after treatment Signup and view all the answers

What is the purpose of using magnification during endodontic procedures?

To enhance visibility and illumination of the treatment area Signup and view all the answers

Which of the following is NOT a type of endodontic bur mentioned in the text?

Tungsten carbide burs Signup and view all the answers

What is the primary function of a root canal explorer?

To locate and explore the orifices of the root canal Signup and view all the answers

How are endodontic instruments classified?

They are divided into 4 different groups Signup and view all the answers

Study Notes

Endodontic Instruments and Techniques

Gutta-percha is removed during root canal retreatment using Gutta-percha removal drills.
Standard length of endodontic hand instruments is 21 mm to 25 mm.
Taper of standardized endodontic hand instruments is typically 0.02.

Instrument Use and Functions

The primary purpose of a barbed broach is to remove pulp tissue from the root canal.
A risk associated with reaming (rotational) motion using Hedstroem files is risk of perforation in the canal.
The main objective of disinfection in root canal treatment is to eliminate microorganisms and prevent infection.

Irrigation and Antimicrobial Action

Sodium Hypochlorite is considered the primary irrigant due to its exceptional antimicrobial action.
Recommended concentration range for Sodium Hypochlorite in root canal treatment is typically 0.5% to 5.25%.
Increasing the temperature of Sodium Hypochlorite enhances its antimicrobial efficiency.
Sodium Hypochlorite can negatively affect the mechanical properties of dentine, making it more brittle.

Endodontic Objectives and Technologies

The main function of an Apex-Locator in endodontics is to determine the working length of the root canal.
The primary goal of biomechanical preparation is to clean and shape the root canal system effectively.

Factors Contributing to Success

Factors that do not contribute to successful root canal treatment can include an inadequate understanding of anatomy.
Purpose of using magnification during endodontic procedures is to enhance visualization of complex structures and improve accuracy.

Instrument Classifications

Endodontic instruments are classified based on their function, design, and usage in shaping and cleaning root canals.
A root canal explorer is primarily used for locating canal orifices and evaluating the canal system.

Types of Endodontic Instruments

Instrument types for shaping the root canal include K-files, Hedstroem files, and reamers; type not used for shaping is specified elsewhere.
Types of endodontic burs mentioned do not include those that are used solely for other purposes outside endodontics.

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Description

Learn about the goals and success factors of endodontic materials in root canal treatment. Understand the importance of biomechanical preparation, cleaning, and sealing for a successful procedure.