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The Bell BriefFrom Dr. Jennifer Bell, DDS
HIGHResearchTier 1

A 3‐Year Split‐Mouth Randomized Non‐Inferiority Controlled Trial Comparing Cement‐Retained Monolithic CAD‐CAM Zirconia and Lithium Disilicate Crowns for Single Posterior Implant Restorations

SourceClinical Oral Implants ResearchTier 1Peer-Reviewed Research

By Xiaosong Yi, Donghao Wei, Shuman Quan, Yingjie Kong, Xi Huang, Xi Jiang, Ye Lin, Ping Di

Originally at onlinelibrary.wiley.com

Summary & scoring by The Bell Brief (Dr. Jennifer Bell) using the Drill-Down Protocol (Drill-Down Score) — not the original publisher.

Why it matters for dental

Practice owners and implant-focused specialists now have peer-reviewed, 3-year RCT data showing that CAD-CAM monolithic zirconia and lithium disilicate crowns are clinically non-inferior for single posterior implant restorations—directly informing material choice, warranty discussions, and lab negotiations.

Key points

  • Split-mouth design in 112 posterior implant sites (56 patients) compared zirconia vs. lithium disilicate monolithic crowns over 36 months.
  • Primary outcome: 98.2 % survival for zirconia, 96.4 % for lithium disilicate—no statistically significant difference in technical or biologic complications.
  • Marginal bone loss averaged 0.42 mm (zirconia) vs. 0.48 mm (lithium disilicate), below the 0.5 mm threshold for clinical concern.
  • Results support either material for posterior single-unit implant crowns, giving clinicians evidence to align material selection with patient occlusion, esthetics, and cost.

Who should care

SpecialistAcademia

Read the original on Clinical Oral Implants Research

Full reporting and any paywall content live on onlinelibrary.wiley.com. We summarize and score; we do not republish.

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