Effect of connector dimensions and span length on fracture resistance of high-translucency
Originally at sciencedirect.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
High-translucency 4Y-TZP zirconia connectors and span lengths directly affect the fracture resistance of long-span fixed dental prostheses, so labs and clinicians choosing zirconia for large anterior or posterior cases must account for these parameters to reduce clinical fracture risk.
Key points
- In-vitro testing and finite-element analysis showed that both connector dimensions and span length influence fracture resistance of 4Y-TZP zirconia.
- The study was published online 9 October 2026 in The Journal of Prosthetic Dentistry.
- Findings apply to high-translucency, multi-unit zirconia restorations where connector size and span length are modifiable design variables.
- No specific numeric thresholds or new clinical guidelines are stated in the source.
Who should care
Read the original on Journal of Prosthetic Dentistry (JPD)
Full reporting and any paywall content live on sciencedirect.com. We summarize and score; we do not republish.
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