Since 1921
100 Years Of Quality
In Dental

GC Initial™ LiSi Block
Lithium Disilicate CAD/CAM Block for Chairside Solutions
A fully crystallised lithium disilicate block that delivers optimal physical and aesthetic properties without firing.

Product Information
GC Initial LiSi Block is a fully crystallised lithium disilicate block that delivers optimal physical and aesthetic properties without firing. 1-6 This unique block features GC’s proprietary High Density Micronisation (HDM) technology for CAD/CAM dentistry to deliver high wear resistance, smooth margins and aesthetic final results. 1-6 This makes it an ideal time saving solution for single visit chairside treatments.
The unique ultrafine crystal makes it easy to grind and can be quickly milled in its fully crystallised stage. Thanks to GC Initial LiSi Block’s exceptional properties, high gloss and natural opalescence can be obtained in few minutes by polishing only and restoration is then ready for luting. 1-6* Optimised acid and wear resistance help to preserve the aesthetics of your restorations over time. 1, 3, 4, 5
GC Initial LiSi Block is available in six aesthetic shades and two translucencies. When more characterisation is required, the GC Initial™ ceramic line comprises fully synergistic aesthetic solutions.
Why choose GC Initial™ LiSi Block?
Reduced chair time
- Just mill, polish and place! Initial LiSi Block offers reduced process time: no need to fire because it is fully crystallised. This results in saving 40%† of the time required to create your restorations
- Durable aesthetic & smooth margins
- Optimised acid and wear resistance to help preserve the aesthetics of your restorations over time 1, 3, 4, 5
- Excellent edge stability for smooth margins 2, 6
Natural opalescence
- Available in both high and low translucencies, GC Initial LiSi Block offers a natural opalescence in any light
Choose your preferred finishing procedure:
- Superior gloss can be obtained in a few minutes by polishing only, and the restoration is then ready for luting*
- For sophisticated aesthetic cases, remarkable results can be achieved with GC Initial Lustre Pastes NF and Initial Spectrum Stains*
The unique ultrafine crystal makes it easy to grind and can be quickly milled in its fully crystallized stage. Thanks to Initial LiSi Block’s exceptional properties, high gloss and natural opalescence can be obtained in few minutes by polishing only and restoration is then ready for luting. The aesthetics of your restoration will be maintained over time.
Initial LiSi Block is available in four aesthetic shades and two translucencies. When more characterisation is required, the Initial ceramic line comprises fully synergistic aesthetic solutions.

Firing is not needed since Initial LiSi Block is a fully crystallized block. Restorations can be finished in one appointment by polishing only.
Initial LiSi Block is available only in one size (14). Size of the block is 12.7 mm x 14.7 mm x 18 mm.
Yes, Initial LiSi Block can be stained and glazed by using Initial Spectrum Stains and Initial Lustre Pastes ONE.
No, Initial LiSi Block cannot be layered with porcelain. Difference in thermal expansion between porcelain and Initial LiSi Block may cause internal microcracks. However, it is possible to micro-layer with our Initial IQ SQIN ceramic.
The restoration colour will look different depending on the thickness and firing condition. Please consider the colour of the block before milling as a guide.
GC Initial™ LiSi Block
Lithium Disilicate Glass Ceramics
Product Information
Initial LiSi Press is the first Lithium Disilicate ceramic ingot with High Density Micronization (HDM), a technology unique to GC that provides unsurpassed physical properties and the most natural, lifelike aesthetics of any pressed ceramic option on the market today.
The result is the ultimate combination of strength and aesthetics, making Initial LiSi Press perfectly suitable for all types of restorations through all levels of transparency.

Why choose GC Initial LiSi Press?
Unparalleled aesthetics:
- Richer, warmer, brighter colour with excellent fluorescence
- Predictable material and colour stability after repeated firings
- Optimised for use Initial LiSi veneering ceramic and Initial Lustre Pastes NF
- Unsurpassed flexural strength
- Seamless learning curve
- Real time savings
- Almost no reaction layer when devested - cleaner presses
- Easy layer removal with glass bead blasting - no hydrofluoric acid
- Lower solubility than other leading brands - permanent gloss
- Antagonist friendly and wear resistant
Indications
- Occlusal veneers
- Thin veneers
- Veneers
- Inlays
- Onlays
- Crowns in the anterior and posterior region
- 3-unit bridges in the anterior region
- 3-unit bridges in the premolar region up to the second premolar as most lateral unit
- Crown or splinted crown on top of an implant abutment
- 3-unit bridges up to the second premolar placed on top of an implant abutment
OPTIGLAZE™ color
Light-Cured Characterization Coating for Composite & Acrylic Indirect Restorations
A revolutionary new material developed specifically to stain and glaze your composite, acrylic and PMMA type materials

Product Information
OPTIGLAZE™ color allows you to change shades, shift value, characterize, create effects and glaze all your resin type prosthetics in no time at all. Best of all, offer your dentists and patients a more beautiful and esthetic restoration that will last due to GC’s innovative new homogeneously dispersed nano-filler technology.
The versatility of OPTIGLAZE™ color will impress you because it adds color, surface gloss and high wear resistance to all your artificial teeth, acrylic dentures, hybrid ceramic crowns, implant retained dentures, composite crowns and bridge, temporary resin crowns and bridges and acrylic permanently fixed with implants.
Why choose OPTIGLAZE™ color?
- Ready-to-use, easy-to-handle and cuts on the polishing stage, saving you valuable time
- Choose from a wide variety of colors, both for internal and external characterization leading to perfect aesthetics
- Renowned nano-filler technology gives your restoration a high-wear resistance for long-lasting gloss with a high discoloration resistance