Initial LiSi Block is a fully crystallized lithium disilicate block that delivers optimal physical properties without firing. This unique block features GC’s proprietary HDM (High Density Micronization) technology for CAD/ CAM dentistry to deliver high wear resistance, smooth margins and aesthetic final results. When used with the ONE SQIN technique – the paintable colour-and-form ceramic system – you can quickly and easily achieve more aesthetic results.
Save time
no firing required
Fully crystallized
lithium disilicate
Durable aesthetics
& natural opalescence
Perfect combo with
Initial IQ ONE SQIN
HDM technology for CAD/CAM dentistry
With LiSi Press, GC introduced the HDM (High Density Micronisation) technology. HDM uses equally dispersed lithium disilicate micro-crystals to fill the entire glass matrix rather than using traditional larger size crystals. The clinical efficiency of this technology has been proven after 5 years of clinical service.
GC has further developed HDM technology for CAD/CAM dentistry by optimizing the crystal size and glass matrix stiffness. Thanks to this new technology, good machinability, marginal integrity, polishability, and wear resistance are achieved at the same time. The result is a strong and easy-to-mill block that offers the same strength with or without firing.
Source: GC R&D, Japan, Data on file
Source: GC R&D, Japan, Data on file
Conventional lithium disilicate technology
(on the left side) (IPS e.max CAD)
compared to HDM technology for CAD/CAM
(on the right side) (Initial LiSi Block)
Improved glass matrix stiffness
for high mechanical strength
Smaller crystals
for easy milling & high wear resistance
Just Mill, Paint and Place
With GC Initial IQ ONE SQIN – the paintable colour-and- form ceramic system – you can quickly and easily achieve highly aesthetic results, comparable to conventionally layered restorations but with a significant time gain.
More accurate margins
Since Initial LiSi Block is already fully crystallised before milling, smooth and accurate margins are observed directly after milling.
When fired after ceramic painting & glazing, this great marginal accuracy is maintained.
Source: GC R&D, Japan, Data on file
Courtesy of MDT. D. Ibraimi, Switzerland
Choice of translucency in accordance with the indication
Polish, paint or microlayer, the choice is yours
Characterize with
Initial IQ Lustre Pastes ONE
L-NFL
L-A
L-2 White
L-3 Light Grey
for translucency effect
Final
Adding natural fluorescence and gloss
Lustre Pastes ONE on Initial LiSi Block
Courtesy of Dr. Javier Tapia Guadix, Spain
Create colour, form and texture with Initial™ ONE SQIN
Framework
Initial LiSi Block
Painting with
Lustre Pastes ONE
Form & texture
SQIN
Fired result
Autoglaze effect
ZTM Stefan Roozen, AU
Choose your preferred finishing procedure
Superior gloss can be obtained in 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 ONE and Initial Spectrum Stains.
Polish with standard burs
Diamond bur
Coarse
Medium
Goat’s wheel
Final result
Courtesy of MDT L. Cavallo, Italy
Function meets aesthetics
”I love the opalescence of Initial LiSi Block and as a consequence thereof the color stability and perfect matching.
Dr. Christian LampsonGermany
”I’m totally excited about the natural opalescence and color matching of the HT version of Initial LiSi Block.
MDT Christian HannkerGermany
Courtesy of MDT Christian Hannker & Dr. Christian Lampson, Germany
Courtesy of MDT Marco Muttone, Dr. Alessandro Iorio, Italy
Natural opalescence
Initial LiSi Block is available in high translucency (HT) and low translucency (LT) and offers a natural opalescence in any light.
Initial LiSi Block restoration under direct and indirect light.
Courtesy of Dr. Javier Tapia Guadix, Spain
Courtesy of Dr. Javier Tapia Guadix, Spain
Courtesy of Dr. David Gerdolle, Switzerland
Cementation recommendation
Adhesive luting is recommended for Initial LiSi Block.
Both G-CEM ONE and G-CEM LinkForce from GC can be used for any type of indications using Initial LiSi Block.
Initial LiSi Block videos
Initial LiSi Block FAQ
Does Initial LiSi Block require a firing process?
Firing is not needed since Initial LiSi Block is a fully crystallized block. Restorations can be finished in one appointment by polishing only.
How many sizes are available?
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.
What kind of milling machine should be used?
Please use a wet type milling machine. Dry milling should not be used for this material.
Can I stain Initial LiSi Block?
Yes, Initial LiSi Block can be stained and glazed by using Initial Spectrum Stains and Initial Lustre Pastes ONE.
Can I layer Initial LiSi Block with porcelain?
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.
Can I take the shade by using the colour of the block before milling?
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.
Downloads
Order information
Related products
Initial IQ ONE SQIN
System set
G-CEM ONE
Self-adhesive resin cement
Initial IQ Lustre Pastes ONE
3-dimensional paintable ceramic
