Endodontics

A dental professional performing a root canal treatment, focusing on endodontic instruments and procedures, with a clean and organized dental office background.

Endodontics Mastery Quiz

Test your knowledge of endodontics with this comprehensive quiz designed for dental professionals and students! Challenge yourself and enhance your understanding of root canal treatments, diagnostic tools, and pulp therapy techniques.

Key Features:

  • 30 carefully crafted questions
  • Multiple choice format
  • Immediate feedback on your answers
60 Questions15 MinutesCreated by ExaminingTooth7
Which of the following is not a diagnostic tool commonly used in endodontics?
Endo Ice
Radiograph
Radiograph
Study model
Determining the working length after:
Cleaning
Shaping
Obturation
Non of about
Which of the following is the best solution for irrigation in root canal treatment?
Saline, distilled water
Sodium hypochlorite
Hydrogen peroxide
Anesthesia solution
What is the objective of coronal access?
To expose and unroof the pulp chamber to gain visibility, icluding removal of pulp horns
To locate the canal openings
To enable a small file to be placed down the canal openings
A pentency file or intial file:
Should be small and flexible
Is sued to deliberately enlarge the foramen
Should be used vigorously
Is a generally accepted technique
Effeciency of irrigation is affected by:
Depth of needle penetration
Coronal pre- enlargement
Temperature of irrigation
Frequency of use
All of above
Fractured instruments may be avoided by:
Not sterilizing them
Jumping between different sizes of instruments
Not pre- curving them
Not forcing instruments
The marjor causes of failure in root canal therapy are:
Presence of small amounts of filling in coronal
Presence of bacterials in canals
Presence of coronal seal
Crown fracture
The pulpectomy immediate are:
Given anesthesia
Access cavity
Extirpation
All of above
The pulpectomy immediate are:
Hypertension patient
Old patient
Patient allergy with anesthesia
Healthy patient
The pulpectomy devitalizing are:
Hypertension patient
Old patient
Patient allergy with anesthesia
All of above
Barbed broaches used for
Enlargement canals
Removing pulp tissue
Estimation working length
Obturation the canals
K files used by
Enlargement the canals
Axial movement
Less aggressive the canal wall than the H files
All of above
H files used by :
Withdrawal up each aspect of root canal
Screw into the dentine and withdraw
Rotate into the dentine and withdraw
Force into the canals
Lentulo spiral used by:
Seal into the canal
Enlarge the canal
Determine the working length
None of above
Gates glidden bur used by
Flaring of coronal two- thirds
Removing GP
Widen the canal when a portion of an instrument has fractured within canal.
All of above
During history taking, a patient complains of pain. Which of the following characteristics of the pain complaint is least relevant?
Character
Site
Severity
Tolerance
The most widely used irrigant displaying optimal cleansing bactericidal properties is:
Formolcresol
Sodium hypochlorite
Saline
Hydrogen perxoxide
Pain on percussion before endodontic treatment indicates:
Reversible pulpitist
Irriversible pulpitist
Pulp necrosis
Inflammation of periodontal tissue
For the extripationof intire pulp, necrotic debri, and foreing material, one should be:
Reamers
Files
Barbed Broaches
Bures
In RCT, over preparationof the outer wall of the optical curvature of the canal with inflexible instrument will cause:
Zipping
Perforation
Elbow formation
Crazing
A patient presents wet a draining sinus tract in labial vestibule of a maxillary central incisor. To confirm your diagnosis. About the origin of pathose you should:
Open the concerned root chamber
Takin the bite- wing radiograph.
Tread gutta- percha through the root canal and expose the radiograph
Tread gutta- percha through the tract and expose the radiograph
An 8 years old boy presents with class III fracture of tooth 11, with appeared an hour ago, the apex is not closed. Your Treatment should be:
Direct pulp capping with Ca(OH)2
Pulpectomy
Pulpotomy
Restoration with GIC
Biologically active sealer whoch promote peri-apical healing contain:
ZnO Eugenol
Cortico-steroids
Ca(OH)2
Zicn phosphate
Direct pulp capping used by:
Vital tooth with pulp exposure
Non vital tooth
Pulp necrosis
Dentin expose
Which the best choice for pulp capping
Glass ionomer cement
Zinc Oxid Eugenol
Calcium hydroxid
Pophate cement
Indirect pulp capping used for
Pulp exposure
Dentin near pulp exposure
Trauma of the tooth
Dentin exposure
Direct pulp capping used for
With a small exposure of the pulp
Tooth not natural color
Exposure of the pulp, such as 2to 3 mm
Trauma of the tooth
The best pulp capping is
Calcium hydroxid
Formolcresol
Zinc Oxid Eugenol
Formaldhyde
A mechanical pulp exposure of small diameter ( Less than 1 mmin diameter ) in mandibular first molar is treat by:
Direct pulp capping
Indirect pulp capping
Pulpotomy
Pulpectomy
When there is a large exposure of the pulp in the vital tooth with immature apex the treatment of choice is:
Pulpotomy
Pulpectomy
Direct pulp capping
Indirect pulp capping
Which of the following is indicated in a pulp exposure with coronal pulp hyperemia:
Pulpectomy
Pulpotomy
Ca(OH)2
Extraction
The treatment of choice for the vital wide apex tooth which shows the pulp exposure is:
Pulpectomy
Pulpotomy
Ca(OH)2
Extraction
The pulpotomy is usually done on:
Primary teeth and young permanent teeth.
Primary teeth
Young permanent teeth.
Permanent teeth.
The pulpotomy is the surgical removal of:
Dental pulp
The coronal pulp
The root pulp
The coronal pulp with leave radicular pulp healthy.
The pulpectomy is the surgical removal of:
All the dental pulp
The coronal pulp
The root pulp
The coronal pulp with leave radicular pulp healthy.
The pulpectomy have :
1 type
2 types
3 types
4 types
���្នុង Patient's Complaint គ្រូព៝ទ្យឝ្រូវ
Listening and record patient words.
Taking action to patient
Ask some question to patient
All of above
From the list below, which is an unlikely characteristic of reversible pulpitis?
Sharp, transient pain
No tenderness to percussion
Pain lingers when stimulus removed
Pain often poorly localized
Which of the following is not a main reason for using rubber dam during root canal treatment?
Provides retraction of the soft tissues
Help manage an uncooperative patient.
Protects against the risk of inhalation or ingestion of endodontic instruments and irrigants.
Eliminates microbial contamination, via saliva, of the exposed root canal system.
What instrument is NOT ever needed for access preparation?
High speed diamond burs
RA Steel round burs
Gates Glidden Drills
Long shank burs
How can you identify dentine on the floor of the pulp chamber in a molar?
It is smooth
It is grey
It is knobbly
It is dark brown
What shape is the access cavity for upper and lower incisors?
Triangular
Ovoid
Round
Oblong
What shape is the access cavity for upper and lower canines?
Triangular
Ovoid
Round
Rectangle
What shape is the access cavity for upper and lower premolars?
Triangular
Ovoid
Round
Rectangle
What shape is the access cavity for upper and lower molars?
Triangular
Ovoid
Round
Rectangle
Where is an 'extra' canal often found in upper molars?
Mesiobuccal root
Distobuccal root
Palatal root
Mesiolingal root
The opening of the distal canal(s) in molars is usually directly under
The distal marginal ridge
The centre of the tooth
The buccal groove
The palatal fissure
Upper first premolars usually have
One canal
Two canals
Three canals
Four canals
Upper second premolars usually have
One canal
Two canals
Three canals
Four canals
Why is often advisable to remove an artificial crown from a tooth before preparing an access cavity?
Metal shavings may drop into the canal
The metal will create false readings when the electronic apex locator is used
The tooth may be rotated or tilted under the crown, and the crown just makes it look straight.
Dam clamps may loosen the crown
To find pulp horns, which instrument is most useful?
A Probe
A file with a curved tip
A small round bur
A Hedstrom File
A patient comes to your clinic on Saturday afternoon complaining of severe sharp pain when eating ice-cream. Your examination revealed a hypersensitive response to thermal test which subside as soon as the stimulus removed. The periapical radiograph shows normal intact PDL. What do you think is your diagnosis?
reversible pulpitis
Irreversible pulpitis
Pulp necrosis with chronic apical abcess
Patient has no problem
You started RCT on tooth #46 two days ago which was asymptomatic. Patient was given another appointment to finish the RCT. The patient came back to your clinic complaining of severe pain when chewing on the same tooth. Clinical examination revealed pain on percussion only. Radiograph shows normal apical area. The cause of the pain might be:
Over-instrumentation.
Overfilling
Caries was left in the access opening.
All of the above
The main pathway of communication between Endodontium and Periodontium is via:
Lateral canals
Apical foramina
Secondary canals
Dentinal tubules
The infection of root canal system is related to:
Mixed aerobic and anaerobic microorganisms
Single obligate anaerobic species.
Multiple aerobic species only.
None of the above
A child has sustained a traumatic exposure of primary central incisor, he presents to you for treatment two days after the injury. Which of the following should be considered?:
Pulpotomy and Ca(OH)2
Pulpotomy and formocresol
Direct pulp capping
Pulpectomy (RCT)
The BEST treatment for alveolar abscess:
Endontic treatment or extraction
Incision and drainage alone
Extraction
Endodontic
The ideal length of RCT is,:
At the apex
As far as you can obturate
0.5 t0 1.5 mm before the apex
0.5 to 2 mm before apex
The technique of placing Gutta-Percha cones against the root canal walls providing space for additional Gutta Percha is termed:
Lateral Condensation
One major Gutta Percha point
Laterally above condensed
Vertical Condensation
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