Podcast
Questions and Answers
What are the causes of canal blockage?
What are the causes of canal blockage?
- Dentine shavings compacted into a hardened mass
- Packing of pulp tissue to form collagen plug
- No irrigation during preparation
- All of the above (correct)
How can ledge formation be detected?
How can ledge formation be detected?
- When the instrument can no longer be inserted to the full working length
- Instrument tip hits against a solid wall with no tactile sensation of binding
- Radiograph shows inability of the inserted instrument to reach full working length
- All of the above (correct)
What is the most common cause of instrument separation?
What is the most common cause of instrument separation?
- Placing exaggerated bends on instruments in curved canals
- Using stressed instruments
- Excessive rotation of the instrument in a canal after binding (correct)
- Forcing a file down a canal
What is the recommended correction for canal blockage?
What is the recommended correction for canal blockage?
What is the purpose of using patency files in root canal shaping?
What is the purpose of using patency files in root canal shaping?
What are the consequences of under-extended access cavity preparation?
What are the consequences of under-extended access cavity preparation?
What is the most common difficulty encountered in preparing small, curved canals?
What is the most common difficulty encountered in preparing small, curved canals?
What is the recommended prevention for transportation in root canal shaping?
What is the recommended prevention for transportation in root canal shaping?
Which technique involves using an initial file followed by 3-4 successive files to the full working length to create an apical stop?
Which technique involves using an initial file followed by 3-4 successive files to the full working length to create an apical stop?
What is the purpose of a patency file?
What is the purpose of a patency file?
What is the motion used in the standarized technique for shaping the root canal?
What is the motion used in the standarized technique for shaping the root canal?
In which technique is the apical coronal preparation achieved from coronal to apical?
In which technique is the apical coronal preparation achieved from coronal to apical?
What is the minimum degree of motion for the master apical file (MAF) in the apical coronal technique?
What is the minimum degree of motion for the master apical file (MAF) in the apical coronal technique?
What is the purpose of the patency file in root canal shaping?
What is the purpose of the patency file in root canal shaping?
In the step back technique, what is the purpose of the patency file?
In the step back technique, what is the purpose of the patency file?
What type of file is used as the patency file?
What type of file is used as the patency file?
Which technique involves a combination of apical coronal and coronal apical preparation?
Which technique involves a combination of apical coronal and coronal apical preparation?
What is the purpose of the initial apical file (IAF) in the apical coronal technique?
What is the purpose of the initial apical file (IAF) in the apical coronal technique?
What are the advantages of the step back technique in endodontic instrumentation?
What are the advantages of the step back technique in endodontic instrumentation?
What is a disadvantage of the step back technique in endodontic instrumentation?
What is a disadvantage of the step back technique in endodontic instrumentation?
What are the advantages of the crown-down technique in endodontic instrumentation?
What are the advantages of the crown-down technique in endodontic instrumentation?
What is the purpose of the Balanced Force motion technique in endodontic instrumentation?
What is the purpose of the Balanced Force motion technique in endodontic instrumentation?
What is a phase involved in the mechanical preparation of radicular access?
What is a phase involved in the mechanical preparation of radicular access?
What is the aim of anti-curvature filling in endodontic instrumentation?
What is the aim of anti-curvature filling in endodontic instrumentation?
What are the advantages of Nickel Titanium (NiTi) endodontic instruments?
What are the advantages of Nickel Titanium (NiTi) endodontic instruments?
What are the guidelines for using rotary NiTi instruments in endodontic instrumentation?
What are the guidelines for using rotary NiTi instruments in endodontic instrumentation?
What is the purpose of power-assisted root canal instrumentation in endodontics?
What is the purpose of power-assisted root canal instrumentation in endodontics?
What is acoustic streaming in endodontic instrumentation?
What is acoustic streaming in endodontic instrumentation?
Flashcards
Causes of canal blockage?
Causes of canal blockage?
All of the above.
How to detect ledge formation?
How to detect ledge formation?
All of the above.
Most common cause of instrument separation?
Most common cause of instrument separation?
Excessive rotation of the instrument in a canal after binding.
Recommended correction for canal blockage?
Recommended correction for canal blockage?
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Purpose of patency files?
Purpose of patency files?
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Consequences of under-extended access cavity preparation?
Consequences of under-extended access cavity preparation?
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Most common difficulty in small, curved canals?
Most common difficulty in small, curved canals?
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Recommended prevention for transportation?
Recommended prevention for transportation?
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Technique using an initial file followed by 3-4 successive files?
Technique using an initial file followed by 3-4 successive files?
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Purpose of a patency file?
Purpose of a patency file?
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Motion used in the standarized technique?
Motion used in the standarized technique?
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Apical coronal preparation achieved?
Apical coronal preparation achieved?
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Minimum degree of motion for the master apical file?
Minimum degree of motion for the master apical file?
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Purpose of the patency file in root canal shaping?
Purpose of the patency file in root canal shaping?
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Purpose of patency file in step back technique?
Purpose of patency file in step back technique?
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Type of file used as the patency file?
Type of file used as the patency file?
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Technique combining apical coronal and coronal apical preparation?
Technique combining apical coronal and coronal apical preparation?
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Purpose of the initial apical file?
Purpose of the initial apical file?
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Advantages of step back technique?
Advantages of step back technique?
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Disadvantage of step back technique?
Disadvantage of step back technique?
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Advantages of crown-down technique?
Advantages of crown-down technique?
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Purpose of Balanced Force motion technique?
Purpose of Balanced Force motion technique?
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Phase involved in the mechanical preparation of access?
Phase involved in the mechanical preparation of access?
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Aim of anti-curvature filling?
Aim of anti-curvature filling?
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Advantages of Nickel Titanium (NiTi) instruments?
Advantages of Nickel Titanium (NiTi) instruments?
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Guidelines for using rotary NiTi instruments?
Guidelines for using rotary NiTi instruments?
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Purpose of power-assisted root canal instrumentation?
Purpose of power-assisted root canal instrumentation?
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Acoustic streaming in endodontic instrumentation?
Acoustic streaming in endodontic instrumentation?
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Study Notes
Endodontic Instrumentation Techniques and Considerations
- Step back and crown-down techniques are commonly used in endodontic instrumentation
- Advantages of step back technique include shaping apical 1/3 with small flexible files and maintaining proper resistance form
- Disadvantages of step back technique include minimal effect of irrigation at initial stages and high stress on the file
- Crown-down technique advantages include elimination of microbes, better irrigant penetration, and less extruded debris
- Hybrid preparation combines step back and step down techniques
- Mechanical preparation of radicular access involves four phases: coronal flare, canal length negotiation, canal enlargement, and final shaping
- Balanced Force motion is a technique to prevent file movement and maintain centralization in the canal
- Anti-curvature filling involves applying pressure away from the dangerous zone in the root canal
- Power-assisted root canal instrumentation includes low-speed rotary instruments and engine-driven reciprocating instruments
- Acoustic streaming is a method for better flushing and cleaning of the canal during instrumentation
- Nickel Titanium (NiTi) endodontic instruments offer advantages such as quick canal enlargement and less time for preparation
- Guidelines for using rotary NiTi instruments include passive technique, detecting difficult canal anatomy, and avoiding overuse of files
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