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Practice Flashcards

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

Read the first 7 Practice flashcards as text
  1. A patient presents with a buccal space abscess originating from a maxillary first molar. Which structure must the infection perforate to reach the buccal space?

    Answer: Buccinator muscle

    The buccal space lies superficial to the buccinator muscle, so infection from the maxillary molar must penetrate the buccinator to reach this space.

  2. When is it appropriate to use a rubber dam during endodontic treatment?

    Answer: For all routine root canal procedures to prevent contamination

    Rubber dam isolation is mandatory for all root canal procedures to prevent microbial contamination of the canal system and protect the patient from aspiration.

  3. A patient has a Kennedy Class II removable partial denture. Which design feature must be incorporated to prevent rotation of the prosthesis during function?

    Answer: Indirect retainers

    Indirect retainers placed anterior to the fulcrum line prevent the distal extension base from tipping or rotating away from the tissue when occlusal force is applied.

  4. A patient with poorly controlled type 2 diabetes presents for a full-mouth debridement. Which laboratory value is most useful for assessing long-term glycemic control?

    Answer: HbA1c (glycated hemoglobin)

    HbA1c reflects average blood glucose over the preceding 2–3 months and is the best indicator of long-term glycemic control.

  5. Which tooth movement type results in the highest rate of root resorption during orthodontic treatment?

    Answer: Intrusion

    Intrusion is associated with the highest risk of root resorption because it concentrates pressure at the root apex.

  6. A patient presents with a white, non-removable plaque-like lesion on the floor of the mouth. Biopsy shows severe epithelial dysplasia. What is the recommended management?

    Answer: Surgical excision with clear margins

    Severe epithelial dysplasia carries a high risk of malignant transformation and requires surgical excision with clear margins.

  7. During a routine exam, a 55-year-old patient is noted to have a 1.5 cm asymptomatic bluish-purple swelling on the lower lip that blanches completely with pressure. This is most likely:

    Answer: Varix

    A varix (phlebectasia) is a dilated vein that blanches completely with pressure and appears as a bluish swelling, commonly found on the lower lip in older patients.