Dental Knowledge Quiz
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Questions and Answers

Which of the following is a common method to diagnose a cracked tooth?

  • Gum bleeding and swelling
  • Block line in Transillumination and pain when releasing the bite
  • Radiographic evidence of fracture (correct)
  • Sensitivity to cold beverages

    • How long is the recommended splinting time for teeth with alveolar fractures?

  • 3 weeks
  • 4 weeks (correct)
  • 6 weeks
  • 2 weeks

    • Which type of file has an active cutting tip?

  • K file (correct)
  • Reamer
  • H file

    • Which file is commonly used to negotiate calcified canals?

    <p>Reamer (D)</p> Signup and view all the answers

    What is the cutting length of an ISO file?

    <p>16 mm (C)</p> Signup and view all the answers

    Which type of fibers transmit dull pain?

    <p>Unmyelinated fibers (A)</p> Signup and view all the answers

    What is the best material that allows tissue healing around the apex?

    <p>Calcium hydroxide (A)</p> Signup and view all the answers

    What is a patency file?

    <p>Small flexible K-file, which is passively moved through the apical constriction (C)</p> Signup and view all the answers

    Which fungi are commonly found in failed root canal treatments?

    <p>Candida albicans (B)</p> Signup and view all the answers

    Which of the following has the highest pH?

    <p>Sodium hypochlorite (NaOCl) (C)</p> Signup and view all the answers

    Which of the following is a common cause of pain when releasing the bite in a cracked tooth?

    <p>Block line in Transillumination (A)</p> Signup and view all the answers

    What is the recommended splinting time for teeth with alveolar fractures?

    <p>6 weeks (D)</p> Signup and view all the answers

    Which type of file is commonly used to negotiate calcified canals?

    <p>K file (B)</p> Signup and view all the answers

    What is the cutting length of an ISO file?

    <p>21 mm (B)</p> Signup and view all the answers

    Which type of fibers transmit dull pain?

    <p>Unmyelinated fibers (B)</p> Signup and view all the answers

    What is the best material that will allow tissue healing around the apex?

    <p>Calcium hydroxide (A)</p> Signup and view all the answers

    Which fungi are commonly found in failed root canal treatments?

    <p>Aspergillus niger (B)</p> Signup and view all the answers

    Which of the following has the highest pH?

    <p>Sodium hypochlorite (NaOCl) (C)</p> Signup and view all the answers

    What is the pH of sodium hypochlorite?

    <p>13 (B)</p> Signup and view all the answers

    What is the term for the extrusion of Gutta-percha and sealer out in the distal side of the mesial root of a molar?

    <p>Strip perforation (A)</p> Signup and view all the answers

    During irrigation, the patient experiences pain and profuse bleeding. What complication is likely occurring?

    <p>Sodium hypochlorite (NaOCl) accident (B)</p> Signup and view all the answers

    Swelling, pain, and a chlorine-like smell during root canal treatment may indicate a:

    <p>Sodium hypochlorite accident (C)</p> Signup and view all the answers

    Sodium hypochlorite (NaOCl) accidents often result from:

    <p>Failure to use a lubricant during instrumentation (B)</p> Signup and view all the answers

    What is the recommended emergency treatment for irreversible pulpitis?

    <p>Root canal therapy (C)</p> Signup and view all the answers

    During instrumentation, the master apical file does not reach the working length. What is the appropriate management?

    <p>Bypass with a small, curved file (C)</p> Signup and view all the answers

    In which tooth is a single canal most commonly found?

    <p>Upper canine (cuspid) or upper central incisor (B)</p> Signup and view all the answers

    What type of bacteria is predominant in the necrotic pulp?

    <p>Anaerobic (C)</p> Signup and view all the answers

    What is the primary use of a dental file?

    <p>To shape the canal (B)</p> Signup and view all the answers

    Approximately what percentage of teeth have a single canal with two foramens?

    <p>33% (A)</p> Signup and view all the answers

    What color is typically used for a file size 35?

    <p>Yellow (A)</p> Signup and view all the answers

    Which is the most likely diagnosis for a tooth with periapical radiolucency that has decreased after 8 months of root canal treatment and no symptoms are present?

    <p>Healing (D)</p> Signup and view all the answers

    Which tooth can exhibit all 8 configurations (i.e., upper 5)?

    <p>Upper 5 (Maxillary first premolar) (A)</p> Signup and view all the answers

    What part of the pulp does an electric pulp test primarily act on?

    <p>Neural element of pulp (C)</p> Signup and view all the answers

    What material is considered best for repairing a perforation?

    <p>Bioceramic (MTA) (C)</p> Signup and view all the answers

    A fracture that involves cementum, enamel, and dentin, but does not involve the pulp, is termed:

    <p>Crown-root fracture without pulp involvement (D)</p> Signup and view all the answers

    What is a concussion injury to a tooth characterized by?

    <p>Marked tenderness to percussion (C)</p> Signup and view all the answers

    Which intra-canal medicament should not be used if the patient is allergic to iodine?

    <p>Iodine potassium iodide (IKI) (D)</p> Signup and view all the answers

    What is the appropriate management for a tooth with internal resorption detected years after a previous dental procedure and no symptoms?

    <p>Observe (A)</p> Signup and view all the answers

    What is the treatment for external resorption?

    <p>Surgical removal of the resorbed tissue (C)</p> Signup and view all the answers

    What is the treatment for subluxation?

    <p>Reposition and stabilize the tooth (A)</p> Signup and view all the answers

    Which type of material does sodium hypochlorite (NaOCl) dissolve in the root canal?

    <p>A. Organic material (D)</p> Signup and view all the answers

    What is the best way to apply sealer to the root canal?

    <p>B. Lentulo spiral (B)</p> Signup and view all the answers

    A tooth without caries and has radiolucency at the cervical (neck) region is most likely experiencing:

    <p>B. Cervical burn-out (D)</p> Signup and view all the answers

    An avulsed tooth was removed from a patient's mouth 3 days ago, and the patient brought it in a dry plastic bag. What type of fixation should be used?

    <p>C. Flexible splint for 2 weeks (D)</p> Signup and view all the answers

    A 9-year-old patient with an avulsed tooth came to the clinic with the tooth after 2 days in a dry plastic bag. What is the appropriate management?

    <p>A. Immediate re-implantation (A)</p> Signup and view all the answers

    In a case with a fluctuant swelling in the periapical radiograph and radiolucency around the apex of a lower sixth tooth, what diagnostic test can help confirm the condition?

    <p>A. MRI (Magnetic Resonance Imaging) (D)</p> Signup and view all the answers

    In a long case, a patient reports feeling pain when consuming sweet foods, and the pain is momentary and relieved when the cold sensitivity test is performed. What is the likely diagnosis?

    <p>A. Reversible pulpitis (D)</p> Signup and view all the answers

    Which is the recommended splinting time for an avulsed tooth if it was replanted within less than 60 minutes?

    <p>2 weeks (D)</p> Signup and view all the answers

    What is the most common complication associated with the use of Mineral Trioxide Aggregate (MTA)?

    <p>Coronal leakage (B)</p> Signup and view all the answers

    What is the primary component of gutta-percha, a material commonly used in endodontics?

    <p>Gutta-percha (matrix) (B)</p> Signup and view all the answers

    What are the primary components of gutta-percha used in root canal obturation?

    <p>20% gutta-percha (matrix), 66% zinc oxide (filler), 11% heavy metal sulfates (radio pacifiers), 3% waxes and/or resins (plasticizers) (A)</p> Signup and view all the answers

    What is the recommended splinting time for an avulsed tooth if it was replanted within less than 60 minutes?

    <p>2 weeks (D)</p> Signup and view all the answers

    What is the most common complication associated with the use of Mineral Trioxide Aggregate (MTA)?

    <p>Coronal leakage (B)</p> Signup and view all the answers

    What is the primary component of gutta-percha, a material commonly used in endodontics?

    <p>Gutta-percha (matrix) (B)</p> Signup and view all the answers

    What are the primary components of gutta-percha used in root canal obturation?

    <p>20% gutta-percha (matrix), 66% zinc oxide (filler), 11% heavy metal sulfates (radio pacifiers), 3% waxes and/or resins (plasticizers) (C)</p> Signup and view all the answers

    Study Notes

    Diagnosing Cracked Tooth

    • A common method to diagnose a cracked tooth is by using a bite test.

    Alveolar Fractures

    • The recommended splinting time for teeth with alveolar fractures is 2-4 weeks.

    File Types

    • An active cutting tip is a characteristic of a K-type file.
    • A C+ file is commonly used to negotiate calcified canals.
    • The cutting length of an ISO file is 16mm.

    Pain Transmission

    • A-delta fibers transmit sharp pain, while C-fibers transmit dull pain.

    Tissue Healing

    • The best material that allows tissue healing around the apex is calcium hydroxide.

    Patency File

    • A patency file is a type of file used to maintain apical patency.

    Fungi in Failed Root Canals

    • Candida and Aspergillus are commonly found in failed root canal treatments.

    pH Levels

    • The highest pH is found in calcium hydroxide (pH 12.5).
    • Sodium hypochlorite has a pH of 11-12.

    Cracked Tooth Symptoms

    • Releasing the bite in a cracked tooth can cause pain.

    Sodium Hypochlorite Accidents

    • Sodium hypochlorite accidents often result from inadequate irrigation or instrumentation.

    Irreversible Pulpitis

    • The recommended emergency treatment for irreversible pulpitis is pulp necrosis.

    Instrumentation

    • If the master apical file does not reach the working length, the appropriate management is to use a pre-curved file or a file with a greater taper.

    Tooth Anatomy

    • A single canal is most commonly found in the maxillary central incisor.
    • Approximately 15% of teeth have a single canal with two foramens.

    Bacteria in Necrotic Pulp

    • The predominant bacteria in the necrotic pulp are anaerobic bacteria.

    Dental File Use

    • The primary use of a dental file is for shaping and cleaning the root canal.

    Root Canal Treatment

    • A diagnostic test to confirm a periapical radiolucency is a periapical radiograph.
    • Swelling, pain, and a chlorine-like smell during root canal treatment may indicate a sodium hypochlorite accident.

    Avulsed Teeth

    • The recommended splinting time for an avulsed tooth if it was replanted within less than 60 minutes is 1-2 weeks.
    • The most common complication associated with the use of Mineral Trioxide Aggregate (MTA) is tooth discoloration.

    Gutta-Percha

    • The primary component of gutta-percha is trans-isoprene.
    • The primary components of gutta-percha used in root canal obturation are trans-isoprene and zinc oxide.

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    Description

    Test your dental knowledge with this quiz on cracked teeth, splinting time for alveolar fractures, and different types of dental files. Find out if you can diagnose a cracked tooth, determine the correct splinting time, and identify the file with an active cutting tip. Challenge yourself and expand your dental knowledge!

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