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Lernmaterialien für Endodontics an der University of Glasgow

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TESTE DEIN WISSEN

What are the advantages of the step-down technique?

Lösung anzeigen
TESTE DEIN WISSEN
  • Keeps reference point for WL
  • Makes straight-line access easier
  • Limits the spread of infected material at the apical foramen
  • Removes bulk of infected tissue allowing reservoir for irrigant
Lösung ausblenden
TESTE DEIN WISSEN

What are 3 rules for locating orifices in the pulpal floor?

Lösung anzeigen
TESTE DEIN WISSEN
  • Always at junction of floor and pulpal walls
  • Always at angle in floor and wall junction
  • Always at terminus of developmental fusion lines
Lösung ausblenden
TESTE DEIN WISSEN

How do you manage a NaOCl extrusion?

Lösung anzeigen
TESTE DEIN WISSEN
  • Stop procedure and inform patient
  • Relax patient and assure then that is can be controlled
  • Local anaesthesia for pain relief
  • Irrigate with copious amounts of saline
  • Dress the tooth with nsCaOH
  • Priority given to 
    • Pain relief
    • Reduction of the swelling
    • Prevention of secondary infection
  • Instruction to patient
    • Cold compresses during first few days
    • Warm compresses for 
      • Resolution of soft tissue swelling
      • Elimination of haematoma
    • Analgesics
  • Review 24 hours after
  • Prescription of antiobiotics
    • Case specific
  • Refer is severe
  • Prognosis of tooth involved is not negatively affected
  • Document in notes
    • Amount of irrigation
    • Conc of NaOCl
    • Use of rubber dam
    • Patient fully informed
  • Carry out a DATIX form
Lösung ausblenden
TESTE DEIN WISSEN

What are the 4 main methods of obturation?

Lösung anzeigen
TESTE DEIN WISSEN
  • Cold lateral compaction
  • Warm vertical compaction
  • Continuous wave compaction
  • Carried based obturation (Thermafil)


Lösung ausblenden
TESTE DEIN WISSEN

What are 5 factors important to assessing case difficulty?

Lösung anzeigen
TESTE DEIN WISSEN
  • Curved canals
  • Indistinct canals
  • Previously treated canals
    • As may have ledges/perforations
  • Position in the arch
  • Heavily restored tooth
Lösung ausblenden
TESTE DEIN WISSEN

What are the 3 laws of pulpal floor anatomy?

Lösung anzeigen
TESTE DEIN WISSEN
  • Law of colour
    • Always dark
  • Law of symmetry 1
    • Orifices lie equidistant from MD line through chamber 
    • Except maxillary molars
  • Law of symmetry 2
    • Orifices lie perpendicular on MD line through chamber 
    • Except maxillary molars
Lösung ausblenden
TESTE DEIN WISSEN

What are 5 errors that can be made during canal preparation?

Lösung anzeigen
TESTE DEIN WISSEN
  • Blockage
    • Causes
      • Dentine debris gets packed into the apical portion of the root
      • Poor irrigation and recapitulation
    • Problems
      • Attempts to remove can result in 
        • Perforation
        • False canal being made
  • Perforation
    • Causes
      • Too much pressure
    • Diagnosed
      • Persistent bleeding into the canal
      • Radiographs
      • Apex locator
      • Dental operating microscope
  • Ledges
    • Internal transportation of the canal
    • Causes
      • Working short of the WL
      • Curved canals
    • Problems
      • Last few mm's of canal will remain diseased, infected and uninstrumented
  • Apical zipping
    • Causes
      • Tendency of the instrument to straighten in a curved canal
    • Problems
      • Tear-drop/hour glass shape canal
      • Over-enlargement
      • Underpreparation
      • Transportation
      • Main axis of canal being transported
    • Issues
      • Poor resistance to packing of GP
      • GP over-extended 
      • Canal poorly filled
    • Avoidance
      • Pre-curve the initial small sized instruments
      • Do not skip instruments in sequence
      • Do not rotate instruments in curved canals
  • Fractured instrument
    • Causes
      • Too much force
Lösung ausblenden
TESTE DEIN WISSEN

What are 6 common symptoms of NaOCl extrusion?

Lösung anzeigen
TESTE DEIN WISSEN
  • Pain
  • Swelling
  • Ecchymosis
  • Haemorrhage
  • Neurological complications
  • Airway obstruction
Lösung ausblenden
TESTE DEIN WISSEN

What are 3 advantages of NiTi instruments?

Lösung anzeigen
TESTE DEIN WISSEN
  • Shape memory
  • Superelasticity (flexible)
    • Can be strained more than other alloys before deformation
    • Can be used in curved canals
      • Less ledging
      • Apical zipping
      • Transportation
  • Greater taper and variable taper
  • Increased cutting efficiency
Lösung ausblenden
TESTE DEIN WISSEN

How do you prevent an NaOCl accident?

Lösung anzeigen
TESTE DEIN WISSEN
  • Rubber dam
    • Single-tooth isolation
  • Ensure a tight seal
    • Opraseal
    • Check with saline
  • Using rubber stops
    • 2mm short of CWL
  • Using index finger
  • Using a luer-lock syringe
  • Using light pressure on syringe
  • Ensure good coronal preparation
  • Do not wedge the needle into the canal
  • Use an alternative irrigant if large open apex
Lösung ausblenden
TESTE DEIN WISSEN

Describe the protaper sequence for shaping and cleaning the canal afetr working out the CWL and achieving straight-line access

Lösung anzeigen
TESTE DEIN WISSEN
  • Look at notes
Lösung ausblenden
TESTE DEIN WISSEN

What are 4 reasons for irrigation during endodontic treatment?

Lösung anzeigen
TESTE DEIN WISSEN
  • Disinfection of canals
  • Dissolve organic debris and flush out debris
  • Lubricate root canal instruments
  • Remove endodontic smear layer
Lösung ausblenden
  • 4628 Karteikarten
  • 304 Studierende
  • 3 Lernmaterialien

Beispielhafte Karteikarten für deinen Endodontics Kurs an der University of Glasgow - von Kommilitonen auf StudySmarter erstellt!

Q:

What are the advantages of the step-down technique?

A:
  • Keeps reference point for WL
  • Makes straight-line access easier
  • Limits the spread of infected material at the apical foramen
  • Removes bulk of infected tissue allowing reservoir for irrigant
Q:

What are 3 rules for locating orifices in the pulpal floor?

A:
  • Always at junction of floor and pulpal walls
  • Always at angle in floor and wall junction
  • Always at terminus of developmental fusion lines
Q:

How do you manage a NaOCl extrusion?

A:
  • Stop procedure and inform patient
  • Relax patient and assure then that is can be controlled
  • Local anaesthesia for pain relief
  • Irrigate with copious amounts of saline
  • Dress the tooth with nsCaOH
  • Priority given to 
    • Pain relief
    • Reduction of the swelling
    • Prevention of secondary infection
  • Instruction to patient
    • Cold compresses during first few days
    • Warm compresses for 
      • Resolution of soft tissue swelling
      • Elimination of haematoma
    • Analgesics
  • Review 24 hours after
  • Prescription of antiobiotics
    • Case specific
  • Refer is severe
  • Prognosis of tooth involved is not negatively affected
  • Document in notes
    • Amount of irrigation
    • Conc of NaOCl
    • Use of rubber dam
    • Patient fully informed
  • Carry out a DATIX form
Q:

What are the 4 main methods of obturation?

A:
  • Cold lateral compaction
  • Warm vertical compaction
  • Continuous wave compaction
  • Carried based obturation (Thermafil)


Q:

What are 5 factors important to assessing case difficulty?

A:
  • Curved canals
  • Indistinct canals
  • Previously treated canals
    • As may have ledges/perforations
  • Position in the arch
  • Heavily restored tooth
Mehr Karteikarten anzeigen
Q:

What are the 3 laws of pulpal floor anatomy?

A:
  • Law of colour
    • Always dark
  • Law of symmetry 1
    • Orifices lie equidistant from MD line through chamber 
    • Except maxillary molars
  • Law of symmetry 2
    • Orifices lie perpendicular on MD line through chamber 
    • Except maxillary molars
Q:

What are 5 errors that can be made during canal preparation?

A:
  • Blockage
    • Causes
      • Dentine debris gets packed into the apical portion of the root
      • Poor irrigation and recapitulation
    • Problems
      • Attempts to remove can result in 
        • Perforation
        • False canal being made
  • Perforation
    • Causes
      • Too much pressure
    • Diagnosed
      • Persistent bleeding into the canal
      • Radiographs
      • Apex locator
      • Dental operating microscope
  • Ledges
    • Internal transportation of the canal
    • Causes
      • Working short of the WL
      • Curved canals
    • Problems
      • Last few mm's of canal will remain diseased, infected and uninstrumented
  • Apical zipping
    • Causes
      • Tendency of the instrument to straighten in a curved canal
    • Problems
      • Tear-drop/hour glass shape canal
      • Over-enlargement
      • Underpreparation
      • Transportation
      • Main axis of canal being transported
    • Issues
      • Poor resistance to packing of GP
      • GP over-extended 
      • Canal poorly filled
    • Avoidance
      • Pre-curve the initial small sized instruments
      • Do not skip instruments in sequence
      • Do not rotate instruments in curved canals
  • Fractured instrument
    • Causes
      • Too much force
Q:

What are 6 common symptoms of NaOCl extrusion?

A:
  • Pain
  • Swelling
  • Ecchymosis
  • Haemorrhage
  • Neurological complications
  • Airway obstruction
Q:

What are 3 advantages of NiTi instruments?

A:
  • Shape memory
  • Superelasticity (flexible)
    • Can be strained more than other alloys before deformation
    • Can be used in curved canals
      • Less ledging
      • Apical zipping
      • Transportation
  • Greater taper and variable taper
  • Increased cutting efficiency
Q:

How do you prevent an NaOCl accident?

A:
  • Rubber dam
    • Single-tooth isolation
  • Ensure a tight seal
    • Opraseal
    • Check with saline
  • Using rubber stops
    • 2mm short of CWL
  • Using index finger
  • Using a luer-lock syringe
  • Using light pressure on syringe
  • Ensure good coronal preparation
  • Do not wedge the needle into the canal
  • Use an alternative irrigant if large open apex
Q:

Describe the protaper sequence for shaping and cleaning the canal afetr working out the CWL and achieving straight-line access

A:
  • Look at notes
Q:

What are 4 reasons for irrigation during endodontic treatment?

A:
  • Disinfection of canals
  • Dissolve organic debris and flush out debris
  • Lubricate root canal instruments
  • Remove endodontic smear layer
Endodontics

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