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Endodontics and Pulpal Therapy Flashcards

7 cards from real AGD practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Endodontics and Pulpal Therapy flashcards as text

  1. Which rotary NiTi file system uses a reciprocating single-file motion to reduce file separation risk?

    Answer: WaveOne Gold

    WaveOne Gold uses reciprocating motion (clockwise-counterclockwise) which reduces cyclic fatigue and file separation compared to continuous rotation.

  2. What is the primary advantage of cone-beam computed tomography (CBCT) over periapical radiographs in endodontics?

    Answer: Three-dimensional visualization of root anatomy and periapical pathology

    CBCT provides 3D images revealing complex root morphology, missed canals, and the true extent of periapical lesions invisible on 2D films.

  3. Calcific metamorphosis (pulp canal obliteration) following dental trauma is best managed by:

    Answer: Elective root canal treatment only if symptoms or periapical pathology develop

    Most teeth with calcific metamorphosis remain vital and asymptomatic; root canal treatment is indicated only when clinical or radiographic signs of pathology appear.

  4. Which type of resorption is characterized by pink discoloration of the crown and widening of the coronal pulp space?

    Answer: Internal resorption

    Internal resorption causes the pulp tissue to resorb dentin from within, making granulation tissue visible through the crown as a pink spot.

  5. A tooth with a necrotic pulp and chronic apical abscess has a sinus tract but NO pain. What AAE classification applies?

    Answer: Asymptomatic apical abscess

    Asymptomatic apical abscess presents as a sinus tract without pain, indicating chronic drainage of a low-grade infection.

  6. Which technique is used to negotiate a severely calcified or curved canal by using a pre-curved file with a 'watch-winding' motion?

    Answer: Balanced force technique

    The balanced force technique uses clockwise and counterclockwise rotation under apical pressure to negotiate curved or calcified canals safely.

  7. Mineral Trioxide Aggregate (MTA) is the material of choice for apexification of an open apex because:

    Answer: It sets quickly in the presence of moisture and provides an immediate hermetic seal

    MTA sets in the presence of moisture and creates a biocompatible apical barrier, making it ideal for sealing open, blunderbuss apices.