Endodontics
Endodontics Mastery Quiz
Test your knowledge on endodontic procedures and techniques with our comprehensive quiz. From instruments used to treatment methods, this quiz covers a wide range of topics that are essential for dental professionals.
Key Features:
- High-quality questions derived from expert knowledge
- Variety of topics in endodontics
- Perfect for students and practicing dentists alike
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:
1.5 mm
2 mm
2.5 mm
3 mm
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 time.
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
Which of the following flap does not involve gingival margin, thus no risk of gingival recession?
Triangular flap
Rectangular flap
Submarginal flap
Papilla base flap
Which is the most demanding flap in term of the operator’s skill?
Triangular flap
Rectangular flap
Submarginal flap
Papilla base flap
For submarginal incision, the incision should be made at the level of:
1 mm apical to the base of the sulcus
2 mm apical to the base of the sulcus
3 mm apical to the base of the sulcus
4 mm apical to the base of the sulcus
Which statement is not true about the curettage of soft tissue lesion?
Complete curettage must always be done to ensure the success of the surgery
The curettage allows accessibility and visibility to the to the root tip
Complete curettage should not be attempted if blood supply to adjacent teeth or vital structure (e.g. nerve bundle) is endangered.
The curettage should be performed before root end resection.
What may not be one of the ways to manage the bleeding during endodontic surgery?
Proper local anesthesia
Premedication with coagulating factors
Electrocoagulation
Obstruction by mechanical means, such as plugging bone cavity with bone wax.
Which is not one of the chemicals used to control the bleeding during endodontic surgery?
Epinephrine
Ferric sulfate
Formocresol
Aluminum chlorite
Why do we usually need to resect the root end for apical surgery?
Because the root end is not important in term of crown/root ratio
To provide a convenient access to the root canal for the apical instrumentation
Because the root end is usually curve lingually/palatally that it is hard to see the apical foramen.
Because the root end is rich of dentinal tubules.
Which material is not used as a retrograde filling material?
IRM
MTA
Amalgam
Zinc phosphate cement
Which size of suture should be used for endodontic surgery?
3.0
4.0
5.0
6.0
What is the benefit of applying a cold compress to the surgical site on the day of the surgery?
To reduce swelling
To reduce pain
To speed up the healing process
To control the bleeding
When should we first see the patient again after an endodontic surgery?
1-2 days
2-3 days
3-5 days
5-7 days
When should we first detect the extent of bone fill following endodontic surgery?
1- 3 months
3-6 months
6 months-1 year
1 year-2 years
For endodontic surgery, when can suture be usually removed?
Within 1 days
Within 2 days
Within 3 days
Within one week
What is the prognosis of apical surgery?
25%
50%
75%
100%
Which dentin is formed during tooth development?
Secondary dentin
Primary dentin
Tertiary dentin
Reparative dentin
Which is the main component of the dentin?
Hydroxyapatite
Collagen
Non-collagenous proteins
Water
Which dentin is formed physiologically after the tooth is fully developed?
Secondary dentin
Primary dentin
Tertiary dentin
Reparative dentin
Which dentin is formed in response to the injury?
Secondary dentin
Primary dentin
Tertiary dentin
Peritubular dentin
Which one is not another name of tertiary dentin?
Reparative dentin
Irregular secondary dentin
Reactive dentin
Mantle dentin
The diameter of dentinal tubules at the peripheral dentin is:?
O.25 m
0.5 m
0.75 m
1 m
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