Endodontics II 2 Dr.Khoeung RathVisal

A detailed illustration of an endodontic procedure in a dental clinic, showing instruments, tooth anatomy, and a dentist at work.

Endodontics II Proficiency Quiz

Test your knowledge and skills in Endodontics with this comprehensive quiz designed for dental professionals and students. Challenge yourself with 50 thoughtfully crafted questions on procedural errors, materials, techniques, and key concepts in root canal therapy.

Prepare for your journey in endodontic excellence by covering topics like:

  • Instruments and motion techniques
  • Root canal preparation and irrigation
  • Pulp capping and pulpotomy procedures
  • Common materials and their uses
50 Questions12 MinutesCreated by ExtractingStar542
Which of the following is not a procedural error usually caused by improper straight-line access?
Zipping
Ledge
Apical perforation
Furcation perforation
What is an example of non-end cutting bur used in finishing the access cavity?
DG 16
Endo Z bur
Glick # 1
Rosehead bur
What should we preferably do with an unsupported cusp?
Leave as it is
Reduce its height
Protect it with a band
Place some cements or fillings underneath so that it become supported again
Can assess cavity be modified during the root canal procedure?
No, it should not
Never
Yes, if needed
Always needs to be modified
What is the most commonly used irrigant?
Hydrogen peroxide
Chlorhexidine
EDTA
Sodium hypochlorite
How many types of motion to manipulate endodontic hand instruments?
3
4
5
6
Filing motion is best used with:
K-file
Reamer
Hedstrom file
Flexible K-file
The objective of root canal preparation is:
To clean and shape
To clean and fill
To shape and fill
To extirpate the pulp
Step-back technique starts from:?
Coronal to apical
Apical to coronal
Either direction
Coronal to apical 1/3, and then from apex to 1/3 apical
Which type of instruments should be used with balanced force motion?
Hedstrom file
Reamer
Non-end cutting flexible K-file
K-file
Which instrument should not be rotated?
Hedstrom file
K-file
Reamer
Non-end cutting flexible K-file
A motion in which a file is rotated 60-90 degree clockwise and then move counter-clockwise through 120-360 degree is called:?
Reaming motion
Watch winding motion
Balanced force motion
Turn and pull motion
A clockwise/counter-clockwise rotation of the instrument through an arc of 30-90o while advancing the instrument into the canal is:
Reaming motion
Balanced force motion
Turn and pull motion
Watch winding motion
The push-pull motion is another name of:
Reaming motion
Watch winding motion
Filing motion
Balanced force motion
Which motion is best used to negotiate the root canal with small files to length?
Balanced force motion
Watch winding motion
Reaming motion
Turn and pull motion
Which motion is best used to prepare severely curved canals?
Reaming motion
Filing motion
Watch winding motion
Balanced force motion
Which technique for preparation should not be used for curved canals?
Step-back technique
Crown-down technique
Standardized technique
Hybrid preparation
Which is the material of choice for intracanal medication?
Calcium Hydroxide
Eugenol
Paper point
Paraformaldehyde
How many millimeters of thickness should the temporary restoration (e.g. Cavit or ZnOE) be placed in the access cavity to ensure an adequate seal?
At least 1 mm
At least 2 mm
At least 3 mm
At least 4 mm
Give me an example of lubricant products?
SmearClear
CHX-Plus
Glyde
MATD
How long should we apply formocresol to fix pulp tissue in pulpotomy of primary teeth?
1-3 minutes
2-4 minutes
3-5 minutes
4-6 minutes
How long should we apply ferric sulfate in pulpotomy of primary teeth?
5-10 seconds
10-15 seconds
15-20 seconds
20-25 second
Which dressing material is placed permanently over the pulp stump in pulpotomy of primary teeth?
Formocresol
Glutaraldehyde
Ferric sulfate
Mineral trioxide aggregate
Among the following dressing materials for pulpotomy in primary teeth, which seems to be the material of choice at present?
Calcium Hydroxide
Formocresol
Ledermix
Mineral trioxide aggregate
What are the indications of direct pulp capping in primary teeth?
Small mechanical or traumatic pulp exposure
Traumatic or carious pulp exposure
Mechanical or carious pulp exposure
Carious pulp exposure with no clinical/radiographic signs of pathology
What is the most common reason to endodontically treat primary teeth?
To keep the tooth symptom-free and functional.
To prevent the crowding of permanent dentition by maintaining the space.
To improve the child’s overall health
To improve the child’s self-esteem
Among the following products, which one is the gold standard as an electronic apex locator?
The Endex/Apit
The Root ZX
Endocater
Bingo 1020
Which apical landmark is the location where the pulp tissue ends and periodontal tissue starts?
Apical constriction
Apical Foramen
Cemento-dentinal junction
Anatomic apex
Which apical landmark is the part of root canal with the smallest diameter?
Apical constriction
Apical Foramen
Cemento-dentinal junction
Anatomic apex
Which apical landmark is the main apical opening?
Apical constriction
Apical Foramen
Cemento-dentinal junction
Anatomic apex
How many configurations can apical constriction have?
1
2
3
4
Among these configurations of apical constriction, which is the most common one?
Single constriction
Tapering constriction
Parallel constriction
Multiconstriction
In horizontal sections, which is the most common shape of apical constriction?
Circular
Oval
Irregular
Ribbon-shaped
Usually, the bucco-lingual dimension of apical constriction is larger than that of mesio-distal by how many millimeters?
O.025 mm
0.05 mm
0.25 mm
0.5 mm
The maximal distance from the CDJ to the root apex can be up to:
1.5m
2mm
2.5mm
3mm
Which apical landmark should be used as the apical reference point of choice?
Apical constriction
Apical Foramen
Cemento-dentinal junction
Anatomic apex
What is the ideal emergency treatment for irreversible pulpitis with pulp exposure if time permits?
Pulpotomy
Pulp extirpation
Pulpectomy
Pulp capping
Which of the following protocols will give you the most favorable outcome to emergency treat irreversible pulpitis with pulp exposure if time is limited?
Pulpotomy
Pulp extirpation
Pulpectomy
Pulp capping
Which medication is usually used for emergency treatment of irreversible pulpitis?
MTA
Eugenol
Ca(OH)2
Formocresol
Which is the most common dental emergency?
Periodontal-related problems
Pericoronitis
Endodontic-related problems
Dental caries
In case of emergency:
We should treat the condition immediately and make a diagnosis later.
We should take our time to make an accurate diagnosis first before starting the treatment.
We should just prescribe an analgesic and appoint the patient at a later
We should make a correct diagnosis, but we do not need to discuss the treatment options with the patient.
Which should be the common procedure for emergency treatment of irreversible pulpitis with pulp exposure?
Pulpectomy
Pulpotomy
Pulp capping with cotton pellet soaked with eugenol
Pulp extirpation
When emergency treating irreversible pulpitis without pulp exposure, which material should be used to temporarily seal the cavity?
Cavit
GIC
ZOE cement
MTA
Why higher concentrations of epinephrine are desired for local anesthetic used in surgical endodontics?
To have a profound anesthesia
To have a better hemostatic effect
To make the patient numb quickly
To reduce the amount of the LA used
Which is not the typical indication of endodontic surgery?
Poor obturated root canals
Blocked root canals by ledge or fractured instrument
Adequate root canal treatment, but fistula still exists
Grossly overinstrumented and overfilled canal
Which concentrations of epinephrine are desired for LA used in surgical endodontics?
1:80000 or 1:50000
1:100000 or 1:50000
1:100000 or 1:80000
1:8000 or 1:5000
To reduce pain and cardiovascular effects upon injecting an LA containing epinephrine, one should not:
Aspirate before injection
Inject the anesthetic solution rapidly
Monitor pulse rate
Inject the anesthetic solution slowly, as this makes patient feel pain for a longer time.
The speed at which an anesthetic solution should be injected is:
3-4 ml per minute
4-5 ml per minute
2-3 ml per minute
1-2 ml per minute
Which is the most commonly used flap in endodontic surgery?
Triangular flap
Rectangular flap
Submarginal flap
Papilla base flap
Which of the following conditions cannot be treated surgically using triangular flap?
Cervical root resorption
Resection of long roots
Coronally-located perforation
Crowns with subgingival margin
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