Trivia Flashcards

Which drug interaction requires special consideration when prescribing metronidazole to a dental patient taking warfarin?

Answer: Metronidazole inhibits CYP2C9 and potentiates warfarin's anticoagulant effect

Metronidazole inhibits CYP2C9, slowing warfarin breakdown and raising INR, increasing bleeding risk.

Which type of bone is found at the crest of the alveolar ridge, connecting the bundle bone of adjacent teeth?

Answer: Transseptal fiber bone

Transseptal fibers embedded in the crestal bone form a continuous ligamentous connection between teeth across the interdental septum.

In caries risk assessment, which factor is considered the single strongest predictor of future caries activity?

Answer: Past caries experience

Past caries experience (DMFT/dmft history) is the best single predictor of future caries risk in both children and adults.

Which landmark on the mandible serves as the attachment site for the medial pterygoid muscle?

Answer: Medial surface of ramus and angle

The medial pterygoid attaches to the medial surface of the mandibular ramus and angle, producing elevation and contralateral excursion.

Which tooth surface is least susceptible to dental caries?

Answer: Smooth facial and lingual surfaces

Smooth facial and lingual surfaces are self-cleansing and benefit most from fluoride, making them the least caries-susceptible surfaces.

The term 'furcation involvement' refers to pathologic resorption of bone in which anatomical area?

Answer: Between the roots of multi-rooted teeth

Furcation involvement describes bone loss in the inter-radicular area (furcation zone) of multi-rooted teeth, classified by Glickman or Hamp scales.

Which type of hypersensitivity reaction is responsible for allergic contact stomatitis from dental materials such as eugenol?

Answer: Type IV (delayed/cell-mediated)

Allergic contact stomatitis to dental materials like eugenol or metals is a Type IV (delayed-type) hypersensitivity mediated by sensitized T-lymphocytes.