Restorative & Materials · single question
Which of the following is NOT a recognized type of zirconia used in dentistry?
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Correct answer: A. Pyramidal zirconia
- A. Correct. 'Pyramidal zirconia' is NOT a recognized type of dental zirconia. This is the fabricated distractor.
- B. Incorrect — high-translucency zirconia IS real. It has increased yttria content for better light transmission, used for anterior esthetics.
- C. Incorrect — 3Y-TZP IS real. It is the original, strongest dental zirconia used for crowns and frameworks.
- D. Incorrect — multi-layered/cubic zirconia IS real. It mimics the natural tooth gradient from opaque core to translucent incisal edge.
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