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CAD/CAM Digital Dentistry Flashcards

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

Read the first 7 CAD/CAM Digital Dentistry flashcards as text

  1. What is the typical linear shrinkage percentage of zirconia blanks during the sintering process?

    Answer: Approximately 20–25%

    Zirconia pre-sintered blanks shrink approximately 20–25% linearly during sintering, and CAD software compensates by enlarging the milled design.

  2. Which scanning technology uses a structured light pattern projected onto a model to capture surface geometry?

    Answer: White-light or blue-light structured light scanning

    Structured light scanners project a known pattern of light and use triangulation to calculate surface coordinates with high accuracy.

  3. When designing a full-contour monolithic zirconia molar crown in CAD software, which anatomical landmark is most critical to replicate accurately for occlusal function?

    Answer: Cusp tip positions and fossa locations

    Accurate cusp tip positions and fossa locations determine proper occlusal contact and chewing efficiency.

  4. In a CAD/CAM implant workflow, what is the function of a scan body placed on the implant before intraoral scanning?

    Answer: To encode implant position and angulation in the digital impression

    Scan bodies have known geometries that allow CAD software to identify exact implant platform position and angulation.

  5. Which milling strategy uses a large-diameter bur first followed by progressively smaller burs to refine detail?

    Answer: Roughing then finishing toolpath strategy

    Roughing removes bulk material quickly while finishing passes use smaller burs to achieve accurate margins and fine anatomical detail.

  6. What does 'connector width' refer to when designing a CAD/CAM fixed partial denture (bridge)?

    Answer: The cross-sectional dimension of material joining the pontic to the retainer

    Adequate connector width is essential for structural strength; minimum dimensions vary by material (e.g., zirconia requires larger connectors than metal).

  7. Which factor most significantly affects the fit accuracy of a CAD/CAM crown at the finish line?

    Answer: Quality of the digital margin detection and preparation design

    Accurate digital margin tracing in CAD software is the most critical step for achieving a precise marginal seal.