Khoeun Rath Visal Quiz

399 Questions | By Konkomsot12 | Updated: Oct 25, 2020 | Attempts: 65

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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