Lithium Disilicate vs Zirconia Comparing Wear Resistance and Aesthetics for Crowns

Selecting the right material for dental crowns is critical for labs and clinicians. Lithium disilicate and zirconia each offer unique benefits, but how do they compare in wear resistance and aesthetics?

Lithium disilicate, a glass-ceramic, excels in aesthetics with 27% higher translucency than zirconia, ideal for anterior crowns that demand a natural glow [1]. Its flexural strength of 400 MPa ensures durability, though it may chip in posterior high-load cases if not polished properly [2]. Studies confirm polished lithium disilicate causes minimal wear to opposing enamel [3].

Zirconia, with over 1000 MPa strength, is unmatched for posterior crowns and bridges. Its polished surface reduces abrasion, outperforming older ceramics in tribological tests [4]. New translucent zirconia narrows the aesthetic gap, making it versatile.

Discover our lithium disilicate and zirconia blocks at Yucera for tailored solutions.

Choose lithium disilicate for anterior beauty, zirconia for posterior strength—both elevate patient outcomes.

References

[1] Journal of Esthetic Dentistry, 2023
[2] Dental Materials, 2022
[3] Clinical Oral Investigations, 2024
[4] Tribology International, 2023