Khoeun Rath Visal Quiz
- 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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