What lithium disilicate is for
Lithium disilicate is a glass ceramic used for crowns, inlays, onlays and veneers, valued for the way light passes through it in a manner closer to natural enamel than an opaque material allows. The source catalogue lists lithium disilicate alongside ceramic glass and press ingots, with lithium disilicate as the named product. This page describes the family in those general terms. Ask for its specification table in an inquiry.
The aesthetic advantage of glass ceramic comes with a planning consequence: the material choice, the preparation design and the bonding approach all interact, and a laboratory should discuss the case type with the prescribing dentist before ordering. This site does not prescribe a preparation or a bonding protocol, because those are clinical decisions outside a catalogue's evidence. The page's job is to place lithium disilicate correctly in the range, not to direct its clinical use.
Ceramic glass and press ingots as categories
Ceramic glass appears in the company catalogue as a category name beside lithium disilicate, and press ingots appear as a further category name. Ask about named products in an inquiry. Both stay at category level. Ask about them in an inquiry.
Category names are useful as signposts, but a product page implies a stocked, named item, and inventing one would create a false order path. The lithium disilicate guide develops the category discussion further, comparing glass ceramic with zirconia in general terms.
The Cerec name, in its proper role
A Cerec disilicate lithium ceramics block appears as a hot product on one company home page, and the Cerec name appears there as a third-party system reference in the source listing. This site keeps it in exactly that role: a system name that tells a laboratory which workflow the block listing is associated with, not a brand owned by this company and not a partnership claim. No page on this site presents Cerec as a company brand, a partner or an endorsement.
The other third-party names on this site, Amann Girrbach and VHF, appear only as compatibility references for PMMA discs and milling burs. A buyer who sees a third-party name on a page should read it as a compatibility hint to be confirmed in an inquiry, not as a claim about the company's own brands. The company's own brand on this site is XANGTECH, and every other brand name is a reference, not a possession.
Glass ceramic versus zirconia, in general terms
In general terms, glass ceramic is chosen where translucency and enamel-like appearance matter most, while zirconia is chosen where a wider span of crown and bridge work, or a gradient shade in a single disc, matters most. That comparison is a planning direction, not a rule, because individual cases, preparation designs and laboratory routines all shift the balance. The lithium disilicate guide and the zirconia selection guide each develop one side of the comparison, so a buyer can read both before deciding.
Ask for comparative strength and translucency figures for these families in an inquiry. A laboratory that needs a number for a particular case should ask for it in an inquiry, naming the material family and the measurement, and the answer can then be checked against the exact product.
Ordering glass ceramic
An order for lithium disilicate should name the material, the shade approach and the quantity range, and then confirm the minimum order quantity, lead time, shipping method and payment terms as buyer instructions. Those four confirmations vary by order and destination, and this site does not promise them in advance. A laboratory ordering glass ceramic for the first time should also note the case type, so the company can confirm that the stocked form matches the intended use.
Certificates for glass ceramic follow the site-wide rule: they are available upon request, and a buyer who needs a document for a particular market should name the product and the market. Ask for the certificate number and scope for this family in an inquiry.
Where to read more on glass ceramic
The lithium disilicate guide on this site is the next step for a buyer who wants more than this category page gives. It explains the category, compares it with zirconia in general terms, and lists the questions to confirm in an inquiry, without binding the category to a specific product specification. The blog index also lists a background article on lithium disilicate glass ceramic restorations.
A buyer who has read the guide and still has a product question should use the inquiry form, naming the material and the case type. The form asks only for a name, an email address and the message, and a message that quotes the guide section it follows will get a faster answer, because the company side can see exactly which comparison the buyer is asking about.