Vancouver Dental Lab Blog

On several occasions, I have been asked what the difference is between the new highly improved LiSi and the conventional Lithium Disilicate glass-ceramic. Therefore, our Vancouver Dental Lab will focus on identifying the differences between the new LD (Lithium Disilicate) and the LiSi-Press. Lisi-Press is the first LD Ceramic with a significant denser grain structure (High-density micronisation). This allows it to provide exceptional physical properties and the most natural, life-like aesthetics.

On the other hand, HDM uses equally dispersed Lithium Disilicate micro-crystals to fill the entire glass matrix rather than using traditional larger sized crystals. Because these crystals do not take full advantage of the matrix structure, it makes LiSi-Press perfectly suitable for all types of restorations through all levels of transparency. Most importantly, HDM technology helps to ensure the product remains extremely stable, strong and aesthetic for the longevity of the patients’ smile.

Exceptional strength, thanks to MDM technology LD micro-crystals are equally dispersed within the glass matrix for a homogeneous fill and a higher crystal density. As a result, this has resulted in a high biaxial flexure strength of >500 Mpa and excellent polishability. Moreover, the fine structure will contribute to minimize the wear of the antagonist teeth.

Physical Properties

High Flexural Strength

LiSi-Press = 508Mpa

Conventional Lithium Disilicate = 442 Mpa

Lower Solubility

LiSi Press = 5.4

Conventional Lithium Disilicate = 24.2

Bright and Natural Aesthetics

First, LiSi (lithium disilicate) has a vibrant and warm colour tone with excellent fluorescence and opalescence, similar to natural teeth for very life-like restorations under any light source, even in the evening. The colour remains stable after multiple firings in a furnace, heated to 840 C. Additionally, the stability of the material will also ensure long-term aesthetic results.

Excellent Marginal Adaptation

In addition to aesthetic results and thanks to the homogenous structure of the evenly dispersed micro-crystals, LiSi ceramic is less prone to marginal chipping; as happens often with conventional Lithium Disilicate. This is due to an excellent marginal adaptation, which contributes to clinical longevity and long-lasting aesthetics.

High Versatility

Lastly, the exceptional strength and amazing aesthetics make LiSi-Press suitable for ultra-thin veneers. This also applied for the single-tooth restorations and small bridges (3 units). Thanks to the four translucencies of LiSi-Press, beautiful results can be obtained, regardless of the thickness of the preparation and the colour of the abutment. For an ultimate aesthetic result, the Lithium Disilicate substrate core may be layered with conventional porcelain powder.

Conclusion

To conclude, the LiSi system can be exceptionally strong and beautiful, if created in a correct manner.

Contact our Vancouver Dental Lab today to place your order on our high-quality LiSi product.