Prosthodontics & Occlusion · patient case question

Which material is most aesthetic for an anterior crown?

Patient case: Aesthetics, preparation taper and post-endodontic restoration

Scenario: Three restorative items.

  1. Monolithic zirconia
  2. Full gold
  3. Lithium disilicate
  4. Porcelain fused to metal
Show answer and explanation

Correct answer: C. Lithium disilicate

  • A. Monolithic zirconia is very strong but comparatively opaque. Newer high-translucency formulations have narrowed the gap without closing it.
  • B. Gold has excellent mechanical properties and biocompatibility but is obviously unacceptable aesthetically in the anterior region.
  • C. Correct. Lithium disilicate combines high translucency with adequate strength for the anterior region, and its optical behaviour closely mimics natural enamel.
  • D. Porcelain fused to metal is limited by the opaque metal substructure, which blocks light transmission and can produce a grey line at the margin as the gingiva recedes.

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