Khoeun Rath Visal Quiz

60 Questions | Total Attempts: 28

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Khoeun Rath Visal Quiz


Questions and Answers
  • 1. 
    Which of the following procedures does not aim to preserve and maintain pulp tissue?
    • A. 

      Partial pulpotomy

    • B. 

      Pulp capping

    • C. 

      Pulpectomy

    • D. 

      Cvek pulpotomy

  • 2. 
    Two main types of vital pulp therapy are:?
    • A. 

      Pulpectomy and pulpotomy

    • B. 

      Pulp capping and pulpotomy

    • C. 

      Partial pulpotomy and cervical pulpotomy

    • D. 

      Direct and indirect pulp capping

  • 3. 
    What type of dentine has to be removed during the indirect pulp capping procedure?
    • A. 

      Affected dentine

    • B. 

      Infected dentine

    • C. 

      Tertiary dentine

    • D. 

      Reparative dentine

  • 4. 
    Which type of pulp exposure has the lowest success rate when direct pulp capping is performed?
    • A. 

      Carious exposure

    • B. 

      Mechanical exposure

    • C. 

      Traumatic exposure

    • D. 

      Iatrogenic exposure

  • 5. 
    The procedure in which only a small portion of coronal pulp (1-3 mm) is removed is called:
    • A. 

      Full pulpotomy

    • B. 

      Cervical pulpotomy

    • C. 

      Stepwise excavation

    • D. 

      Cvek pulpotomy

  • 6. 
    Which is the most commonly used pulp-capping material?
    • A. 

      Calcium Hydroxide

    • B. 

      Glass Ionomer

    • C. 

      Zinc Oxide Eugenol

    • D. 

      Mineral trioxide aggregate

  • 7. 
    • Mineral trioxide aggregate
    • A. 

      Indirect pulp capping

    • B. 

      Vital pulp therapy

    • C. 

      Direct pulp capping

    • D. 

      Pulpotomy

  • 8. 
    Which of the following factors does not affect the outcome of vital pulp therapy?
    • A. 

      Preoperative pulpal status

    • B. 

      Quality of the final restoration

    • C. 

      The pulp capping material used

    • D. 

      Patient’s medical conditions

  • 9. 
    Which pulpal condition can be treated with vital pulp therapy?
    • A. 

      Irreversible pulpitis

    • B. 

      Reversible pulpitis

    • C. 

      Pulpal polyp

    • D. 

      Hyperplasic pulpitis

  • 10. 
    What is the main advantage of stepwise excavation?
    • A. 

      Complete caries removal

    • B. 

      Easier to be performed than indirect pulp capping without re-entry

    • C. 

      No risk of pulp exposure at all

    • D. 

      Has higher success rates than indirect pulp capping without re-entry

  • 11. 
    Cervical pulpotomy is also called:?
    • A. 

      Cvek pulpotomy

    • B. 

      Full pulpotomy

    • C. 

      Partial pulpotomy

    • D. 

      Complete pulpotomy

  • 12. 
    Which procedure must be done at least in two visits?
    • A. 

      Indirect pulp capping without re-entry

    • B. 

      Direct pulp capping

    • C. 

      Pulpotomy

    • D. 

      Stepwise excavation

  • 13. 
    Which are the two commonly used material for indirect pulp capping?
    • A. 

      Calcium hydroxide and zinc-oxide eugenol cement

    • B. 

      Calcium hydroxide and mineral trioxide aggregate

    • C. 

      Calcium hydroxide and resin-modified glass ionomer cement

    • D. 

      Calcium hydroxide and Cavit

  • 14. 
    Why do we need to obturate?
    • A. 

      To prevent infection/reinfection of treated root canals.

    • B. 

      To disinfect the treated root canals.

    • C. 

      To facilitate the shaping of the root canals.

    • D. 

      To make root canals radiopaque.

  • 15. 
    Endodontic failures related to obturation can be caused by:?
    • A. 

      Missed canal

    • B. 

      Inadequate cleaning of the root canal system

    • C. 

      Vertical root fracture

    • D. 

      Horizontal root fracture

  • 16. 
    Which of the following is not a potential cause of obturation-related failure?
    • A. 

      Lack of apical seal

    • B. 

      Lack of coronal seal

    • C. 

      Lack of lateral seal

    • D. 

      Lack of primary seal

  • 17. 
     What is the main composition of Gutta-Percha?
    • A. 

      Zinc oxide

    • B. 

      Gutta-Percha

    • C. 

      Binders

    • D. 

      Opaquers

  • 18. 
     Which of the following is not a desirable property of sealers?
    • A. 

      Tissue tolerance

    • B. 

      Radiolucent

    • C. 

      Bacteriostatic

    • D. 

      No shrinkage with setting

  • 19. 
    Which of the following is a desirable property of an ideal sealer?
    • A. 

      Insoluble to tissue fluid

    • B. 

       Insoluble in solvent

    • C. 

      Soluble to tissue fluid

    • D. 

      Insoluble in solvent but soluble to tissue fluid

  • 20. 
    Which solvent is commonly used to make a custom solvent-softened cone technique?
    • A. 

      EDTA

    • B. 

      Chloroform

    • C. 

      Lubricant

    • D. 

      AH26

  • 21. 
    In the custom solvent-softened cone, how long do we need to dip the tip of the GP cone in chloroform?
    • A. 

      1-2 seconds

    • B. 

      2-3 seconds

    • C. 

      3-4 seconds

    • D. 

      4-5 seconds

  • 22. 
    Which is not a factor to consider when making a decision about the timing of obturation?
    • A. 

      Degree of difficulty

    • B. 

      Patients symptoms

    • C. 

      Bacterial culture

    • D. 

      Pulp and periradicular status

  • 23. 
    Which is not a desirable property of an ideal core obturating materials?
    • A. 

      Be radiopaque

    • B. 

      Be hardly removed from the root canal

    • C. 

      Be sterilize or easily sterilized

    • D. 

      Be impervious to moisture

  • 24. 
    In lateral condensation, the master cone is fitted to:?
    • A. 

      Within 0.5 mm of the working length (WL)

    • B. 

      Within 1 mm of the WL

    • C. 

      Within 1.5 mm of the WL

    • D. 

      Within 2 mm of the WL

  • 25. 
    When should spreader or plugger be selected?
    • A. 

      Before the cleaning and shaping phase

    • B. 

      During the cleaning and shaping phase

    • C. 

      Just before the obturation

    • D. 

      During the obturation

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